• Thrips

  hatching, the larvae begin to feed on plant tissue on the underside of the leaf. The larvae are smaller than the adults and lack wings. Depending on the species [...] sometimes be mistaken for fungal spores or other types of debris. Thrips damage Thrips cause damage to the plant by piercing the cells of the surface tissue [...] a later stage, the empty cells become desiccated and the adjacent cells turn brown. The vigour of the plant is also reduced by loss of chlorophyll. With

• Spidex Vital FAQ

  Changes of Spidex What is the difference in the product presentation? Spidex Vital consists of all mobile stages of Phytoseiulus persimilis. The carrier [...] colour than the Spidex I’m used to? During production of Spidex Vital the predatory mites don`t get to eat spider mites, which cause the coloration of Spidex [...] Hotspots of spider mite are even better under control with Spidex Vital, compared to the regular Spidex. Does anything change to the rate of application

• Cabbage moth

  accumulates in the heart of cabbage, thereby lowering the commercial value of infested crops. Life cycle and appearance of Cabbage moth The adult cabbage [...] from their pupae the female moths lay clusters of 20 to 100 eggs on the underside of leaves or elsewhere within the greenhouse structure. The eggs are initially [...] have a light network of markings. First instar larvae of the cabbage moth (Mamestra brassicae) are gregarious, eating the edge of the leaves on which they

• Onion thrips

  patches on leaves and the black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When [...] with a large head and bright red eyes. The colour of the adult depends on the food source. Onion thrips (Thrips tabaci) usually pupate in the ground, although [...] eggs of the onion thrips (Thrips tabaci) are laid in leaves, flower petals and in the soft parts of stalks. They are inserted into the plant tissue with a

• Feltiella acarisuga

  biological control. The predatory gall midge Feltiella acarisuga is used for the control of the following pests: Spider mites Some of the common spider mites [...] and adapt the amount of food they consume to the density of the spider mite population. Where there are large, localised concentrations of spider mite [...] shaped. Larval Stage : The colour of the larva is usually orange but can vary according to the colour of prey eaten and may sometimes be yellow or red. Immediately

• Spidend

  Make a hole in the lid and place the cup on the rock wool slab or directly on the soil Protect against direct sunlight and water Leave the cup in place for [...] least two weeks Dosage The dosage of Spidend depends on climate, crop and spider mite density and should always be adjusted to the particular situation. [...] soon as the first spider mites are detected in the crop. Introduction rates typically range from 0.25-25 per m 2 /release. Releases should be repeated

• Thripor-I

  after application Dosage The dosage of Thripor-I depends on climate, crop and thrips density and should always be adjusted to the particular situation. Start [...] suck out the contents. Visual effect The predatory bugs actively search for prey. With their piercing mouthparts, they extract the contents of their prey [...] n as soon as the first thrips are detected in the crop. Introduction rates typically range from 0.5-10 per m2/release. Releases should be repeated once

• Western flower thrips

  finally the adult insect. The eggs of the western flower thrips (Frankliniella occidentalis) are laid in leaves, flower petals and in the soft parts of stalks [...] buds. Compared to the prepupa, the pupa has longer, more developed wing buds and longer antennae that are curved back over the head. The prepupal and pupal [...] disturbed. In the adults both pairs of wings are fully developed. Damage symptoms Thrips cause damage to plants by piercing the cells of the surface tissues

• Rhyzobug

  Open the cap and tap the beetles directly on the plants. Be aware that adults may not fly away immediately after release. Dosage The dosage of Rhyzobug [...] density and should always be adjusted to the particular situation. Start introduction as soon as the first armoured scales are detected in the crop. Introduction [...] Releases should be repeated until control is achieved. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy

• European red mite

  there can be many generations in one year. The European red mite overwinters in the egg stage; the “winter eggs” are laid in the wooden parts of the host plants [...] and appearance of European red mite The European red mite feeds mainly on the undersides of leaves but moves to upper leaf surfaces when the lower side becomes [...] spots (tubercles) at the base of the hairs; males are about 0.3 mm long, yellowish red, and more slender and tapered near the hind end. The development from