Chrysopa-E

shrivelled skins are difficult to find. Chrysoperla carnea larvae are active mainly during the night. The larvae hide during the day. Pack size 100,000 [...] pest density and should always be adjusted to the particular situation. Introduction rates typically range from 10-100 eggs per m 2 /release. Releases should [...] including low temperatures (average > 12°C/54°F). It is most effective at 20-28°C (68-82°F). Combined use Can be used in combination with other aphid

Bacterial spot

such as clipping and handling and aerosols. Many isolates are resistant to copper-containing pesticides. How to prevent Bacterial spot Use clean propagation [...] a halo. In pepper, the spots on the leaves are also round and small to start with and slightly raised from the leaf surface. They occur on the abaxial [...] mildew infection, pepper plants shed the leaves that are severely infected. Humid conditions are conducive for lesion expansion. On the stems, long, narrow

Treatment of bumblebee stings and allergies

These days it is possible to take a test using purified bumblebee venom to determine whether you will have an allergic reaction the next time you are stung [...] Huisarts en Wetenschap 2002; 45 (7): 362-7. De Groot, H. Allergy to bumble bees. Curr Opin Allergy Clin Immunol 2006; 6: 294-7. A printed poster showing the [...] and wasp stings Bumblebees are found in the natural environment in many countries. In addition, bumblebees and honeybees are used as pollinators in agricultural

Brown root rot, corky root rot

temperatures for disease development lie between 15 and 20 °C. Development reduces at temperatures above 20 °C. The fungus produces pycnidia containing conidiophores [...] fungus is a poor competitor against a balanced microbial population in soil. How to prevent Brown root rot, corky root rot Field crops: Fumigate the soil Practise [...] crops Delay planting in the spring until soil temperatures are higher Mound soil around the stem to promote adventitious root growth Greenhouse crops: Steam

Early blight

rapidly as two to three days later and sporulation within five days. Infection is both direct and through wounds and stomata. Spores are dispersed by wind [...] that are caused by sporulation. Species may differ in specific symptoms. Damage symptoms Alternaria solani causes small green to dark brown spots to occur [...] blight From the primary infection of leaves, Alternaria solani can spread to the flowers (especially dangerous in crops for seed production) and to the crown

Predatory mites

your crop consultant for the frequency of releases. Video: How to use predatory mites How many predatory mites do I need? The dosage and frequency of predatory [...] What are predatory mites? Predatory mites are beneficial arthropods used in pest control to manage and reduce populations of harmful pests in various [...] tiny arthropods are natural enemies of many plant-feeding mites and insects like spider mites , whitefly and thrips . Predatory mites are an essential component

Loose smut of barley

Damage symptoms How to prevent Loose smut of barley Use clean seed: Apply systemic fungicide treatment of seeds. Contact fungicides are not effective Apply [...] and appearance of Loose smut of barley The seeds are infected during flowering and the infected seeds are the primary source of inoculum in the next crop [...] The teliospores that are formed on systemically infected seeds then infect neighbouring new seeds. They germinate within a day and infect the inner tissues

Loose smut of wheat

Damage symptoms How to prevent Loose smut of wheat Use clean seed: Apply systemic fungicide treatment of seeds. Contact fungicides are not effective Apply [...] and appearance of Loose smut of wheat The seeds are infected during flowering and the infected seeds are the primary source of inoculum in the next crop [...] The teliospores that are formed on systemically infected seeds then infect neighbouring new seeds. They germinate within a day and infect the inner tissues

Diglyphus isaea

adjusted to the particular situation. Start introduction as soon as the first mines are visible in the crop. Introduction rates typically range from 0.25-3 [...] Koppert as Miglyphus Diglyphus isaea products Miglyphus Expand all items How to use Diglyphus isaea The parasitic wasp Diglyphus isaea is available in a [...] intervals or until control is achieved. At low temperatures (<20°C/68°F) it might be better to use Minusa. Consult a Koppert advisor or a recognized distributor

Black rot of carrots

rapidly as two to three days later and sporulation within five days. Infection is both direct and through wounds and stomata. Spores are dispersed by wind [...] erred carrot disease. The seeds are the main source of primary infection and this may lead to death of seedlings. From the primary infection of leaves [...] temperatures from 2-4 °C up to 28-30 °C (optimum temperatures lie between 15 and 28 °C) and at a relative humidity (RH) of over 90% or when the leaves are wet.