• Oak processionary moth

  countries and also in parts of the Middle East. Damage symptoms The nests of caterpillars on infested trees are clearly visible. The larvae of the oak processionary [...] months. From the 5th instar on, the larvae start building silken nests at the base of lower branches, on the trunks or at the base of the trunks, which [...] thousands of individuals. The larvae usually stay in their nests during the day leaving at night in a characteristic procession to feed in the canopy of the

• Pea and Bean Weevil Trap

  headland of a field that was planted with peas or beans in the previous year Place the trap on the ground Ensure the trap is securely positioned on the ground [...] Place the funnel onto the green bucket Place the pheromone dispenser in the transparent top Fix the transparent top with a twist action lining up the slots [...] lures the male and female weevils into the trap. Once in the trap they cannot escape and are easy to detect, count and identify. Presentation One trap.

• 100% Sustainable Agriculture

  that is the guiding principle in everything we do! Pioneering is not new to Koppert. In fact, it’s in our DNA. Fifty years ago our founder was the first [...] generation is introducing this valuable legacy of knowledge and experience to the field of Agriculture. Working together with farmers We look at the problems [...] products from our range. Of course, we do not develop these products on our own: our R&D department is constantly testing them in the field together with you

• Effective control with Chrysopa-E!

  resulted in a new product marketed under the name, Chrysopa-E , which uses the egg stage of the lacewing, Chrysoperla carnea , instead of the larval stage [...] Advantages of Chrysopa-E Due to the attractive price of Chrysopa-E , it is possible to use many more beneficials and thus gain better control of pests, with [...] and economically. While the larval product is supplied in a 6-litre bucket containing 10,000 larvae, the eggs are delivered in a 90 ml canister containing

• Horse-chestnut leaf miner

  instar. The pupa is brown and is 2.9-4.5 mm long. The horse-chestnut leaf miner overwinters in the pupal stage in a cocoon in dead leaves. The emergence [...] a true cocoon in the mine. The percentage of larvae which spin true cocoons increases in each of the subsequent generations. Adults of the first generation [...] aesthetic damage to horse-chestnut, one of the favourite ornamental trees in European cities. Damage symptoms Larvae of the horse-chestnut leaf miner damage

• Cottony cushion scale

  period of 2 to 3 months. After leaving the egg sac, the crawlers settle along the midribs and veins of the leaves. The next two instars migrate to the larger [...] control. The cottony cushion scale has subsequently spread widely through most of the tropical and subtropical countries of the world. It is also periodically [...] produced by the scales coat the leaves, blocking the stomata and impeding gas exchange. Sooty moulds grow on the honeydew, blocking the light from the leaves

• Lyprauta

  appearance of Lyprauta The adults of the three species can be distinguished by the wing pattern of adults. Adults of P. trinidadensis have a variation of dar [...] root damage in potted orchids, especially in greenhouses in the Netherlands. Dutch farmers call these larvae potworms, however, they should not be confused [...] confused with the actual potworms which are small earthworms of the family Enchytraeidae. Damage symptoms The symptoms are superficial damage on roots. Especially

• Greenhouse whitefly

  General The greenhouse whitefly ( Trialeurodes vaporariorum ) is one of the major pests of vegetable and ornamental crops in greenhouses throughout the world [...] affect the physiology of the plant, as a result of which growth is retarded. In full sunlight, leaves can wilt and fall. Such leaf damage can in turn influence [...] and the excess is excreted as honeydew, with larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of sucking

• Cutworms

  instars is usually observed as a cutting of young seedlings, often causing death of the cut seedlings. Sometimes wilting is observed because of partial [...] flow in the plant. Life cycle and appearance of Cutworms The adults of Agrotis spp. have pale grey to grey-brown forewings with a faint kidney-shaped marking [...] a broad dark marginal stripe. The wingspan is about 40-55 mm and the dorsal thorax is covered with close-lying hairs. The eggs are white at first but rapidly

• Tomato looper

  three pairs of prolegs, instead of the normal five and therefore the caterpillar moves with the same looping motion as an inchworm (geometrid). The cocoon is [...] species originating in the Mediterranean and northern Africa. The larva is highly polyphagous and feeds on plants of over 20 families, among them crops such [...] from southern Europe, the golden twin-spot moth ( Chrysodeixis chalcites ) spreads to several northerly countries and is now one of the most frequently found