Tomato looper

Older instars eat through the leaves, which make them appear skeletonized. The last two instars may eat the entire leaf except for the midrib or other large [...] white marks on the forewing that sometimes overlap each other. The hindwings are brown. The body is brown and hairy and, when at rest, the hairy dorsal plume [...] ribs. They are deposited singly or in pairs throughout the crop, on the lower and upper surfaces of leaves. The caterpillar passes through 6 instars. It has

Cutworms

will occasionally tunnel into the growing stalk, disrupting the sap flow in the plant. Life cycle and appearance of Cutworms The adults of Agrotis spp. have [...] and hide in the ground during the day. Damage from these instars is usually observed as a cutting of young seedlings, often causing death of the cut seedlings [...] turn darker. They are laid separately or in batches on the ground, or on the plant close to ground level. The larvae are yellowish when hatching with a

Cactus mealybug

their name from the fact that the body of the females from the third nymphal instar onwards are covered with a white waxy material in the form of powder [...] wholly engaged in seeking females to fertilize. The female second instar nymph, on the other hand, moults into a third instar, and then into the adult female [...] by the trade in ornamental plants. Opuntia cactus damaged by mealybug, a dangerous pest of various plants Damage symptoms The cactus mealybug usually infests

Lyprauta

orchids, especially in greenhouses in the Netherlands. Dutch farmers call these larvae potworms, however, they should not be confused with the actual potworms [...] are small earthworms of the family Enchytraeidae. Damage symptoms The symptoms are superficial damage on roots. Especially the root tips are affected. [...] to rot internally. Just above the damaged area, the roots produce large numbers of new branches. This ultimately results in a reduced number of flower stems

Hemispherical scale

General The hemispherical or helmet scale, Saissetia coffeae , occurs widely in tropical regions and in greenhouses throughout the world. It is a severe [...] surface distinguish the species from most other soft scales. The size depends on the host plant and can vary from 2 to 4.5 mm. The young nymphs are white [...] yellowish, more oval in form and with a raised H-pattern on the dorsal surface. All instars live on the underside of leaves, often close to the midrib. Only when

Onion fly

wings. The eggs are laid by the female onion fly on the young leaves, necks of onion seedlings or in the soil close to the base of onion plants. The onion [...] death of the onion plant. The roots and leaves are harmed when the onion fly larvae tunnel into the onion bulbs. This damage may decrease the quality of [...] starts with the right approach. Growers must carefully monitor the development of the onion fly. This way he knows when the first flight of the onion fly

Bean seed fly

worldwide. Adult flies lay eggs near the base of bean plants, and upon hatching, the larvae burrow into the soil and feed on the seeds and roots of young plants [...] fly measuring about 4-5 mm in length. It typically has a shiny black or dark brown body with clear wings. The larvae, on the other hand, are small white [...] near the base of affected bean plants. You can recognise if your crop is affected by the bean seed fly through several indicators. Firstly, check the seedling

Spider mites and other mites

are often found in colonies on the undersides of leaves, where they feed on the plant's sap. The damage caused by plant mites can result in discolored or [...] n of the leaves, with the affected areas curling and twisting. This damage is caused by the mites feeding on the plant tissue, which disrupts the growth [...] and the availability of food. Here's an overview of the life cycle of plant mites: Egg: The life cycle begins with the female mite laying eggs. The eggs

Macrolophus pygmaeus

rs , as well as the larvae of leaf miners . When the bug is present in a crop in large numbers, it can contribute substantially to the control of these [...] to damage. In tomato there may be fruit deformations during setting, and in gerbera, misshapen flowers may appear. The use of this bug in gerbera is therefore [...] occasional small black markings: the first antennal segment is black, and a black stripe runs behind the eyes. The first part of the forewings is a transparent

Orius laevigatus

and feeding on the soft bodies of their prey. The predatory bug Orius laevigatus is used for the control of the following pests: Thrips The natural enemy [...] and/or in application boxes (Dibox) Apply in groups of at least 50 insects in order to establish a population and encourage mating Make sure the material [...] should always be adjusted to the particular situation. Start introduction as soon as the first thrips are detected in the crop. Introduction rates typically