Woolly apple aphid

General The woolly aphid, Eriosoma lanigerum , is a serious worldwide apple pest. It is probably of North American origin and has been distributed to other [...] Woolly apple aphid In contrast to other aphids , the life cycle and survival from year to year of the woolly aphid depends entirely on wingless, parthenogenetic [...] by masses of white, mealy wax. The siphunculi are pore-like and the cauda is small. Eriosoma lanigerum overwinters as “naked” nymphs (without wax covering)

Artificially lit crops pollination advice

carrying out temporary hand pollination when natural pollination is insufficient. Remove snow from the greenhouse roof when possible. Energy screens and grow [...] cause confusion in their orientation. To prevent bumblebees from flying aimlessly in the crop, it is advised to turn off grow lights well before sunset to encourage [...] ensuring efficient pollination in indoor settings. While outdoor pollination is often facilitated by natural agents like wind and insects, artificially lit

Impatiens thrips

the plant is reduced by loss of chlorophyll. When infestations become serious the leaves themselves can shrivel. Echinothrips americanus is often found [...] General Impatiens thrips (Echinothrips americanus) is an increasing problem in greenhouse cultivation, having spread to many countries within the last [...] sweet pepper, cucumber and eggplants. It lives exclusively on the leaves and is often present on weeds in greenhouses. Life cycle and appearance of Impatiens

Pea blight, leaf and pod spot

are formed from which orange-red masses of two-celled conidia are exuded. Secondary infection is by splash dispersal of these conidia. There is no known [...] dark brown to red-brown border. The first infection is often on the primary leaves. The fungus is seed borne and thus also causes post- and pre-emergence [...] General Ascochyta pisi is a fungal plant pathogen that causes A scochyta blight on pea (leaf blight or pea blight) and lesions of stems, leaves, and pods

Feltiella acarisuga

Feltiella acarisuga is available at Koppert as Spidend . How to use Feltiella acarisuga The predatory gall midge Feltiella acarisuga is available in plastic [...] rates typically range from 0.25-25 per m2/release. Releases should be repeated at least 3 times at weekly intervals, or until the pest is controlled. Consult [...] the larva is usually orange but can vary according to the colour of prey eaten and may sometimes be yellow or red. Immediately after emerging from the egg

Verticillium wilt

microsclerotia are formed. The spread of the fungus by mycelium growth is limited. Dispersal from plant to plant takes place via water, soil particles, tools, etc [...] . The root system usually stays mostly intact. In rose, branches die off from the top and purple brown stripes occur on the stem. In tomato, sometimes [...] seed-borne and tuber-borne. The optimum temperature for Verticillium albo-atrum is 21 °C and growth stops above 30 °C, whereas Verticillium dahliae has an optimum

Aphipar-M

rock wool slabs or in Diboxes Make sure the material remains dry and is not moved from its introduction site for at least a few days Dosage The dosage of [...] Myzus persicae var. persicae ). Mode of action Adult parasitic wasps emerge from the mummies and females lay their eggs into aphids . The next generation [...] preventively soon after planting of the crop. Introduction rates typically range from 0.25-4 per m 2 /release. Releases should be repeated at least 3 times. Consult

Aphidend

of action Adult gall midges emerge from the pupae and deposit their eggs in the aphid colonies. After emerging from the eggs the larvae consume the aphids [...] Introduction rates typically range from 1-10 per m2/release. Releases should be repeated at weekly intervals until control is achieved. Consult a Koppert advisor [...] significantly at higher temperatures. As gall-midges are active at night, it is crucial to keep the night temperature above 12°C/61°F, to ensure optimal

Loose smut of wheat

General Ustilago nuda f.sp. tritici is a basidiomyceteous fungus that affects wheat. It is also known as loose wheat smut, or loose smut of wheat. Damage [...] tritici remains invisible until head emergence. The first sign of infection is the appearance of a smutted ear. Instead of normal tissue, the ear contains [...] cultivars Perform field checks for infected seed and prevent the use of seeds from infected fields for further cropping Prevent plant diseases by optimizing

Grower Koen - Embracing biological crop protection in agriculture

traditional farming practices. For him, it is clear that chemical-free farming is an inevitable trend, and he is determined to prepare for this new phase [...] between traditional and organic is actually quite pleasant," he explains. He emphasizes that his approach stemmed from both practical considerations and [...] and a conscious choice. Inheriting the farm from his parents, Koen had the opportunity to continue the business. While the trend towards organic farming