What, where and with what to treat in the garden month by month. A clear overview of diseases and pests, recommended products and eco-friendly alternatives you'll find with us.
The basic treatment of peaches against leaf curl is spraying with copper-based products at the time of bud break. If rainy weather prevails after the trees have budded, we carry out one more spray, at the latest before flowering, with an available organic fungicide.
Spraying against overwintering pests, mainly aphids and scale insects, is carried out from bud break until the beginning of flowering of the individual fruit species. The earliest date is at the stage when the flower buds with a green calyx reach 10 to 15 mm (typical for stone fruit) or the developing leaves reach a length of at least 10 mm (known as the 'mouse ear' stage in apple trees). The latest date is at the stage of white or pink flower buds just before they open. The spray should be thorough and generous, and at the time of spraying the temperature should be above 15 °C.
We carry out the first preventive spray of gooseberries against American gooseberry mildew just before flowering, and the second immediately after flowering has finished.
Products
Sulfurus
BIO
We also have eco-friendly products
Floravita SiOFolicit
ApricotsFungicide
March
Monilia blossom and shoot blight
The first preventive spray should be carried out at the beginning of flowering, the second as the trees finish flowering, especially in rainy and cold weather. During spring pruning of stone fruit, the dried-up mummified fruit affected by Monilia, together with the withered twigs, should also be cut off the trees and burned.
Products
BelantySignum
Brassicas (cole crops)Soil protection
March
Clubroot
The disease is caused by the fungus Plasmodiophora brassicae. It thrives mainly in heavy and acidic soils. Plants with affected roots are stunted in growth, turn yellow and often die. The pathogen survives in the soil in the form of so-called resting spores for 4 to 6 years. Protection: Proper crop rotation and application of calcium cyanamide, which must be worked into the soil at least three weeks before planting the brassicas.
Products
Calcium cyanamide
GarlicInsecticide
March
Garlic fly (Suillia lurida)
The garlic fly is a fly whose larvae damage winter garlic crops. Affected plants are stunted in growth, the youngest leaves become deformed and gradually die. Protection: Only crops of autumn-planted garlic are treated, especially in areas where the pest occurs regularly. Spraying is carried out immediately after the first warming above 10 °C and repeated after 10 to 14 days. A wetting agent (e.g. Agrovital, DropFor, Silwet) should be added to the spray liquid.
Products
BeneviaKarate Zeon 5 CS
Alliums, peas, carrots, potatoesHerbicide
March
Weeds
Agil 100 EC – against annual and perennial grass weeds in all the listed crops. Benta 480 SL – against dicotyledonous weeds in peas and potatoes, after emergence of the crop and weeds, when the crop is 5–15 cm tall. Stomp Aqua – against dicotyledonous weeds in alliums, peas and carrots.
Products
Agil 100 ECBenta 480 SLStomp Aqua
Ornamental plants, vegetablesSoil protection
March
Damping-off of seedlings
We combat damping-off of seedlings comprehensively by ensuring optimal growing conditions (sufficient light, suitable temperature, balanced nutrition, adequate watering) and by preventive treatment of the sowings in the form of watering. We apply 2–5 litres of solution per 1 m².
Products
Magnicur Energy
BIO
We also have eco-friendly products
ChitopronTrifender
LawnNutrition
March
Spring fertilization and moss control
After overwintering, it is recommended to thoroughly rake, aerate and fertilize the lawn (Floralon Trávnik). If there is a lot of moss in the lawn, we recommend using combined fertilizers that also contain active substances for moss control.
Products
Expert TrávničekFloralonAntimachFlorasinStopmach Fe
Apples, pearsFungicide
April
Scab
The first preventive spray of susceptible varieties should be applied at the beginning of flowering, the second immediately after the trees have finished flowering. We continue spraying at two-week intervals until the end of June, especially in rainy weather. By spraying pears against scab, we simultaneously also fight pear rust.
Mainly susceptible varieties are treated. The first preventive spray should be applied just before flowering, the second immediately after the trees have finished flowering. Further sprays are needed especially in drier and warmer weather. Before spraying, it is recommended to remove mildew-infected leaf rosettes and shoot tips from the trees.
Products
BelantyBellisKumulus WGSulfurusThiovit Jet
Apricots, sour cherriesFungicide
April
Monilia blossom and twig blight
Monilia blossom and twig blight of apricots and sour cherries is caused by the fungus Monilia laxa. Infection occurs when rainy and cold weather persists during the flowering of the trees. Protection: Only sensitive varieties of apricots and sour cherries are treated, at the beginning and end of flowering, especially in cold and rainy weather. In addition, drying twigs must be continuously removed from the trees and burned.
Products
BelantySignum
Fruit treesInsecticide
April
Overwintering pests
With the early spring spray we fight pests overwintering on fruit trees (e.g. aphids, armored scale insects, soft scale insects, geometrid (looper) moths, etc.). The early spring spray can be applied at the earliest after bud break and at the latest just before flowering of all fruit tree species. At the time of spraying, the temperature should be above 10 °C.
Products
ExirelKarate Zeon 5 CSMospilan 20 SPEarly spring spray
BIO
We also have eco-friendly products
Bor OilFerrum Oil
Apples, plumsInsecticide
April
Early fruit maggot damage (sawflies)
Early worminess of fruit is caused by sawflies. Apples are attacked by the apple sawfly, plums by the plum sawfly. Female sawflies lay their eggs into the calyces of fading flowers, so we carry out spraying at the end of flowering or immediately after the trees have finished flowering.
Products
ExirelNeemazal T/SSanium UltraSanium Ultra AL
GooseberriesFungicide
April
Powdery mildew
The first spray of susceptible gooseberry varieties should be applied just before flowering, the second immediately after flowering, and two more at 10-day intervals. Do not apply the sulfur-based product Sulfurus at temperatures above 25 °C. Products should be alternated.
Products
Sulfurus
BIO
We also have eco-friendly products
Floravita SiOFloravita Coco
OnionInsecticide
April
Allium leafminer
The spring generation of the allium leafminer damages onions from autumn and early spring planting. Infested plants become markedly deformed. Later we find the pest's larvae or pupae in them. Protection: In mechanical protection it is important to cover the crops with white non-woven fabric before the pest's swarming begins (in the first days of April). If we opt for chemical protection, we apply the first spray immediately after detecting puncture marks in the leaves, the second two weeks later. A wetting agent (Agrovital, Dropfor or Silwet) should also be added to the spray liquid.
Products
BeneviaSanium UltraSanium Ultra AL
VegetablesHerbicide
April
Weeds
Agil 100 EC – against annual and perennial grass weeds. Benta 480 SL – against dicotyledonous weeds in potatoes and legumes. Stomp Aqua – against annual dicotyledonous and grass weeds.
Products
Agil 100 ECBenta 480 SLStomp Aqua
Apple treesInsecticide
May
First generation of the codling moth
We intervene against the first generation of the codling moth according to forecasting during the mass hatching of the caterpillars (in the warmest regions usually in the last ten days of May or in the first days of June). It is recommended to repeat the spray after two weeks. The product Exirel is applied already during egg-laying, the bio-product Lepinox Plus at the beginning of caterpillar hatching.
The cherry fruit fly causes maggot infestation of the fruit of later varieties of cherries and sour cherries. Control consists of two or three sprays of the trees at 10-day intervals during the swarming of the adults and at the beginning of egg-laying. The date of the first spray falls within the period of the onset of flowering of the black elder in the given locality.
Products
ExirelMospilan 20 SPSanium Ultra
BIO
We also have eco-friendly products
Floravita Citro
StrawberriesFungicide
May
Botrytis (grey mould)
Botrytis (grey mould) attacks strawberry fruit especially in rainy weather. We begin preventive sprays at the start of flowering and, as needed, continue at 10-day intervals also during the fruit-ripening period.
Products
ScalaSignum
BIO
We also have eco-friendly products
CuprotonicChitopron 5%SerifelPower of-K
GrapevineFungicide
May
Grapevine powdery mildew
Dry and warm weather creates optimal conditions for the spread of powdery mildew. Therefore we should carry out the first spray of the grapevine already in the second ten days of May. In case of showers or storms, we can also add copper-based products (Cuproxat, Champion, Kocide) to the spray solution against grapevine downy mildew.
Products
BelantyDynaliKumulus WGSulfurusThiovit JetVivando
BIO
We also have eco-friendly products
Bor OilChitopron 5%Ferrum OilFloravita SiOFolicitPower-of K
PotatoesInsecticide
May
Colorado potato beetle
Of the listed products, Benevia is applied already during egg-laying, while the other products are most effective against young larvae.
Against powdery mildew we treat susceptible rose varieties already from the beginning of May, especially in dry and warm weather. Conversely, in rainy weather we act against rust and black spot of the leaves. We apply the products at 10–14-day intervals.
The most effective way to control aphids is the spray against overwintering pests. If we did not manage to carry it out, we should regularly inspect the fruit trees and treat them as soon as possible after detecting the first colonies of aphids.
Products
Fix-ItKarate Zeon 5 CSMospilan 20 SP
BIO
We also have eco-friendly products
Floravita CitroNeemazal T/S
Apple treesInsecticide
May
Woolly apple aphid
The woolly apple aphid harms apple trees by sucking plant sap on the shoots and branches. Since it overwinters on the root collar of the trees, we cannot reach it with the early-spring spray. Therefore we act against it only after detecting the first colonies protected by waxy filaments. In case of a lighter infestation, we can also apply the prepared spray solution onto the individual colonies of the pest with a brush. Products approved against aphids can also be used against the woolly apple aphid.
Products
Mospilan 20 SPSanium System
BIO
We also have eco-friendly products
Floravita Citro
GrapevineInsecticide
May
Grape berry moths
In May, the first generation of grape berry moths harmful to the grapevine swarms. Treatment is carried out according to forecasting, especially in areas with a regular occurrence of the banded grape moth or the marbled (European) grapevine moth. During egg-laying Exirel is applied, at the beginning of caterpillar hatching Lepinox Plus, and during the mass hatching of caterpillars the other products.
Products
ExirelKarate Zeon 5 CSMavrikSanium UltraSpintor
BIO
We also have eco-friendly products
Lepinox Plus (bio)
Fruit trees, grapevineNutrition
May
Chlorosis
In areas with a regular occurrence of chlorosis, fertilizers with a higher iron content are applied in spring into the soil in the form of watering. From the second half of May, when the fruit trees and grapevine already have a sufficiently large leaf area, these fertilizers are applied at two-week intervals in the form of repeated foliar sprays.
Products
Ferrum OilFlorasin Lignovit Fe
OnionFungicide
May
Onion downy mildew
Onion downy mildew threatens onion stands especially in rainy weather. We begin preventive sprays in mid-May and, in rainy weather, continue at 7 to 10-day intervals also in June. A wetting agent (e.g. Agrovital, Dropfor or Silwet Star) should also be added to the spray solution.
Products
AskonMagnicur FinitoSignum
BIO
We also have eco-friendly products
CuprotonicFloravita SiOChitopron 5%
VegetablesHerbicide
May
Weeds
Agil – against annual and perennial grass weeds. Benta 480 SL – against annual dicotyledonous and grass weeds. Stomp Aqua – against annual dicotyledonous and grass weeds.
Products
Agil 100 ECBenta 480 SLStomp Aqua
Apple trees, pear treesInsecticide
June
Codling moth – first generation
We treat against the codling moth according to the pest forecast (we recommend regularly following the 'this week' updates on the Floraservis website). The listed products are applied during the mass hatching of the caterpillars, but the biological product Lepinox Plus should be applied earlier, about 4 days before the forecast date. Quinces can be treated together with apple and pear trees.
After the natural fruit drop, we begin treating susceptible apple varieties against bitter pit of the fruit with foliar fertilizers containing a higher amount of calcium (e.g. Florasin Calcium, Wuxal Kalcium). We carry out the sprays at two-week intervals until September.
Products
Florasin Calcium PlusWuxal Kalcium
GrapevineFungicide
June
Downy mildew and powdery mildew of grapevine
Against both of the most important fungal diseases of grapevine – downy mildew and powdery mildew – we must not skip three preventive treatments: the first just before flowering, the second immediately after flowering, and the third two weeks later.
Products
BelantyDynaliKumulus WGSulfurusVivandoCuproxat SCEnervin SCChampion 50 WGKocide 2000Profiler WG
In the second half of June it is recommended to hang yellow sticky traps in the crowns of walnut trees to monitor the flight and to catch the walnut husk fly, whose larvae cause the summer blackening of the walnut husk. In mid-June the soil can be treated with the biological product BORA NEW applied as a soil drench followed by shallow incorporation. After this drench, the soil under the walnut trees can be covered with a non-woven fabric so that the adult flies of the pest cannot emerge. We begin chemical control only after detecting the first individuals of the walnut husk fly on the sticky traps (usually in the first days of July). The tree sprays should be repeated at least four times at 10-day intervals and the products should be alternated. To increase the effectiveness of the products, we recommend adding the attractant Combi Protec to the spray solution, which lures the walnut husk flies into the tree crowns.
Depending on the course of the weather, but also on the susceptibility of the cultivated varieties, we treat against all three fungal diseases of roses. Drier weather promotes the occurrence of powdery mildew, whereas heavy rains create ideal conditions for the spread of black spot on the leaves and rose rust. The sprays are repeated at 10- to 14-day intervals.
A hidden pest of gladioli is the gladiolus thrips, because it sucks plant sap from the flower buds even before they open. It causes the most pronounced damage to darker-colored varieties. On their flowers we find tiny whitish spots and black droplets of the pest's excrement. We begin spraying when the plants reach a height of 20 cm and repeat it at 10- to 14-day intervals until the beginning of flowering. A wetting agent should also be added to the spray solution, e.g. Agrovital, Dropfor or Silwet.
Products
Karate Zeon 5 CSSanium RTU ALSanium SystemSanium UltraSanium Ultra AL
BIO
We also have eco-friendly products
Floravita CitroNeemazal T/S
Ornamental plantsInsecticide
June
Mealybugs, soft scales and armored scales
Mealybugs, soft scales and armored scales all cause damage by sucking plant sap, which significantly weakens the affected plants. They attack various species of indoor and balcony flowers, as well as a wide range of ornamental woody plants. In addition, while feeding they excrete large amounts of sticky honeydew, which on the one hand soils the lower-lying leaves and at the same time serves as a suitable substrate for various species of sooty mold fungi, which form continuous black coatings on the leaves and branches.
We treat tomatoes against late blight (Phytophthora) especially in the case of heavy rainfall. We begin spraying already in the first ten days of June and repeat it at 7- to 10-day intervals. Products approved against late blight are also effective against Septoria leaf spot of tomatoes.
Since greenhouse cucumbers are protected from rain, cucumber downy mildew threatens them less. Among the fungal diseases, they are more likely to be attacked by powdery mildew. We begin spraying after detecting the first symptoms of the disease and, if necessary, repeat it several times at 10-day intervals. Drier air and high temperatures also promote the spread of spider mites.
We begin treating field cucumber stands against cucumber downy mildew in the second ten days of June and repeat the spray several times at 10-day intervals, especially in rainy weather.
We usually begin preventive sprays against potato late blight in the second half of the month and repeat them at 7- to 10-day intervals, especially in rainy weather.
Aphids cause damage not only by sucking plant sap, but also by spreading the agents of viral diseases. Therefore we treat against them as soon as possible after detecting them. The listed products also destroy caterpillars that damage peppers.
Products
Fix-ItKarate Zeon 5 CSMospilan 20 SPSanium RTU ALSanium System
BIO
We also have eco-friendly products
Bor OilFerrum OilFloravita Citro
Greenhouse peppersInsecticide
June
Spider mites and broad mites
The dryness and high temperatures that prevail in greenhouses and polytunnels promote the rapid spread and reproduction of spider mites, which first appear on the underside of the older leaves. Conversely, infestation of peppers by broad mites manifests at the tips of the shoots in the form of deformed leaves, and later also by browning and corky scarring of not only the affected tissues but also of the developing fruits. We treat against both pests only after detecting them.
Products
Nissorun 10 WP
BIO
We also have eco-friendly products
Bor OilFerrum OilFloravita Citro
Apples, pearsInsecticide
July
Codling moth – 2nd generation
It causes the well-known worminess of fruit. We treat against the second generation of the codling moth according to the forecast in the news on the Floraservis website. Wormy fruit often succumbs to brown rot (Monilia). Only autumn and winter varieties are treated.
The second generation of the pest is much more numerous and damaging than the first. We carry out the treatment according to the forecast. For treating earlier varieties we prefer products with a shorter pre-harvest interval.
In July the second generation of the oriental fruit moth swarms; we treat against it according to the forecast. We treat only the later varieties so as to comply with the prescribed pre-harvest interval of the approved products.
Fungal diseases and leafhoppers – golden yellowing (Flavescence dorée)
In July too we continue treating the grapevine against the most important fungal diseases. Rainy weather promotes the spread of downy mildew and botrytis (grey mould), while warmer weather with heavy morning dews favours the spread of powdery mildew. Detailed instructions for combating leafhoppers – the vectors of grapevine golden yellowing (Flavescence dorée) – can be found by scanning the QR code with your mobile phone.
The larvae of the walnut husk fly cause blackening of the walnut husk (hull). The pest overwinters in the soil in the pupal stage, from which the adult flies hatch from the end of June, so we carry out the first spray of the endangered trees in the first days of July and repeat it 3 to 4 times at 10-day intervals. Karate Zeon and Mospilan are registered against the walnut husk fly, but the products Sanium Ultra and Spintor should also be effective. The effectiveness of these products can be increased by adding the attractant COMBI-PROTEC to the prepared spray liquid, which lures the walnut husk flies into the tree canopies. Adding COMBI-PROTEC does not change the length of the pre-harvest interval of the product used.
With the arrival of lower night temperatures and heavy morning dew, conditions are created for parsley and carrots to be attacked by powdery mildew. We begin spraying immediately after the first symptoms of the disease are detected.
In July, brightly coloured nymphs (larvae) of the southern green stink bug may appear on tomatoes, peppers and beans, as well as on other vegetable species. They cause damage by sucking plant sap, which can significantly spoil especially the fruit of the affected crops. The adult bugs fly well, but the nymphs do not yet have developed wings, so they can be easily located and destroyed. Chemical control of the pest has not yet been developed, but in the event of its overpopulation, products approved against other pests of the affected crop could be used. For tomatoes, for example, Karate Zeon 5 CS, Mospilan 20 SP, Neemazal-T/S, Spintor.
Products
Karate Zeon 5 CSMospilan 20 SPNeemazal-T/SSpintor
TomatoFungicide
July
Late blight (Phytophthora)
In rainy weather we continue treating tomatoes against late blight (Phytophthora). The listed products are also effective against septoria leaf spot of tomatoes. During the harvest period we use products with a shorter pre-harvest interval.
We continue treating susceptible apple varieties against bitter pit of the fruit. We apply foliar fertilizers with a higher calcium content at two-week intervals. We carry out the last spray at the latest 2 weeks before harvest.
Products
Florasin Calcium PlusWuxal SUS Kalcium
GrapevineFungicide
August
Downy mildew and botrytis (grey mould)
In rainy weather we continue treating the grapevine against the most important fungal diseases. Botrytis (grey mould) causes rotting of the berries, downy mildew infects mainly the leaves, which turn yellow and drop prematurely. The loss of leaf area significantly reduces the quality of the harvest. Powdery mildew now threatens only the late grapevine varieties. During the harvest period we strictly observe the stated pre-harvest intervals.
At the end of summer, late brassicas are threatened by the caterpillars of the cabbage moth and of the large white butterfly. The caterpillars of the cabbage moth are more damaging, because the older ones bore into the heads of cabbage or savoy cabbage and render them completely worthless. That is why we have to act against them shortly after hatching, while they still stay in groups on the underside of the leaves. A wetting agent (Agrovital, Dropfor or Silwet Star) should also be added to the spray liquid. Benevia is applied as early as the egg-laying period.
The second generation of the allium leafminer attacks leek crops. The swarming of the pest usually begins in the second half of August, but it can last until October. We apply the first spray immediately after detecting the puncture marks of the females in the leek leaves and repeat it at ten-day intervals until October. A wetting agent (Agrovital, Dropfor or Silwet Star) should also be added to the spray liquid. Smaller leek beds can also be protected with white non-woven fabric.
Products
Sanium Ultra (7 days)Sanium Ultra AL (7 days)
CeleryFungicide
August
Septoria leaf spot
Septoria leaf spot affects all green parts of the plants and causes fine brown spotting on them. It spreads above all in rainy weather, but in gardens its occurrence can also be encouraged by frequent overhead watering and by growing celery in shaded places. We begin preventive sprays at the latest once the first symptoms of the disease are detected and, especially in rainy weather, we repeat them at 10-day intervals.
Products
Askon (14 days)
TomatoFungicide
August
Late blight (Phytophthora)
In rainy weather we continue treating tomatoes against late blight (Phytophthora). The listed products are also effective against septoria leaf spot of tomatoes. During the harvest period we use products with a shorter pre-harvest interval.
For late potato varieties we continue treating against potato late blight. We repeat the sprays at 7- to 10-day intervals, especially in rainy weather, in order to protect the haulm until it matures naturally.
We continue treating against powdery mildew. Lower night temperatures and heavy morning dew at the end of summer create ideal conditions for it to spread on parsley, carrots and on susceptible species of ornamental plants. We begin spraying immediately after the first symptoms are detected and repeat it according to the course of the weather.
The caterpillars of the box tree moth damage the leaves of box plants. A larger number of caterpillars can consume all the leaves of the infested plants, leaving only the thicker veins. The pest usually has two generations a year, and the young caterpillars of the second generation overwinter in dense white cocoons among the box leaves. We act against the pest as soon as possible after detecting feeding damage or the caterpillars themselves. It is recommended to add a wetting agent (Agrovital, Dropfor or Silwet) to the spray liquid.
Products
Karate Zeon 5 CSNeemazal T/SSanium UltraSanium Ultra AL
BIO
We also have eco-friendly products
Lepinox Plus (bio)
ChrysanthemumsFungicide
August
Septoria leaf spot
This is the most common fungal disease of chrysanthemums and it spreads mainly in rainy weather. Heavily infested leaves drop prematurely and the plants become bare from the bottom up. Besides preventive sprays, which we repeat at 10-day intervals, it is important to grow the plants at a wider spacing, to water them at the base and to rotate the growing areas of chrysanthemums.
Products
Magnicur FungimatMagnicur Fungimat AL
BIO
We also have eco-friendly products
Floravita SiO
RosesFungicide
August
Fungal diseases
We continue treating roses against fungal diseases. Drier weather promotes the occurrence of powdery mildew, whereas heavy rains create ideal conditions for the spread of black spot on the leaves and rose rust. We repeat the sprays at 10- to 14-day intervals.
iTreat according to the current monitoring signals and weather conditions. Always follow the instructions for use and the waiting periods stated on the product packaging. Our information is drawn from the Floraservis advisory service, which publishes up-to-date spraying recommendations and dosages every month. If you're unsure, we're happy to advise you in person at the store.
News
Opening hours during holidays
On the days listed below we are open with adjusted opening hours:
📅 1. máj8:00 – 18:00
📅 8. máj8:00 – 18:00
Thank you!
You have been successfully subscribed to news from our garden centre.
Plant transport 
