Cutworms

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 dark [...] species are for instance the black cutworm Agrotis ipsilon and the turnip moth Agrotis segetum . The larvae of these moths usually feed on roots and plant parts [...] 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

Northern Corn Rootworm

feed on the foliage, pollen, silks and developing kernels of corn, with the following consequences: When corn silks are cut all the way back to the ear [...] In Eastern Canada, the northern corn rootworm is the most common species found on corn. While adult Diabrotica barberi can feed on a variety of plants [...] diapause; the eggs of “semivoltine” Diabrotica barberi remain dormant in the soil for two winters. This allows the larvae to effectively skip the field’s

European corn borer

in June. The eggs are laid mainly on the underside of leaves. The larvae initially feed on the leaves and then bore into the upper part of the maize plants [...] Later, frass and holes are easily visible on stems, or on the apical part of maize ears. Larval tunnelling weakens the stalks and causes them to break during [...] just before hatching. The eggs are laid in a mass and overlap like tiles on a roof. The average number of eggs per egg mass is 30. The larvae are up to 25

Adalia bipunctata

maximum 3 bags per tree The dosage of Aphidalia depends on climate and the size of the trees and should always be adjusted to the particular situation. Start [...] aphid infestations without the need for chemical pesticides. The predatory beetle Adalia bipunctata is used for the control of the following pests: Aphids [...] feeds on all aphid species, but the product Aphidalia is especially designed for the control of aphids in trees. How to use Adalia bipunctata The predatory

Stratiolaelaps scimitus (Hypoaspis miles)

and other soil-dwelling insects. The mites appear in and on the soil and at the base of plant stems. The reduction of the infestation level occurs at a slow [...] white stripe on the rear end of the body. The eggs, larvae, and first nymphal instars are white, with nymphs becoming light brown as they age. The eggs are [...] before use Spread material evenly on soil or planting medium (not on the plastic) The dosage of Entomite-M depends on climate, crop, planting medium and

Phytoseiulus persimilis

to feed on spider mites. The quantity of prey consumed depends on the predator and prey populations, the sex and age of the predator, and the temperature [...] use Push the centre of the cap to open the dosage hole Sprinkle material on leaves or pour into Diboxes Make sure the material remains on the introduction [...] hole Hold sachets by the cardboard strip at the top, to avoid damaging the predatory mites The dosage of Spidex Vital Plus depends on climate, crop and pest

Flies

directly and indirectly. The type of damage depends on the species of the flies. Direct damage is the immediate result of larvae feeding on root hairs and tender [...] y small flies of the families Sciaridae ( sciarid flies ) and Ephydridae (shore flies). The larvae of these insects generally live on rotting plant material [...] and are mostly found in the soil. The spotted wing drosophila , Drosophila suzukii , has recently developed into a major pest on soft fruits in Europe and

Cabbage moth

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 [...] instar larvae of the cabbage moth (Mamestra brassicae) are gregarious, eating the edge of the leaves on which they were laid. From the third instar onwards [...] symptoms Large caterpillars feed mainly on the youngest leaves, producing skeletonized leaves, holes and frass on leaves. The caterpillars destroy large numbers

Amblydromalus limonicus

before use Push the centre of the cap to open the dosage hole Carefully sprinkle material on leaves Make sure the material remains on the leaves for at least [...] limonicus The life cycle of Amblydromalus limonicus consists of the following stages: egg, larva, protonymph, deutonymph, and adult. Eggs are laid on the underside [...] approximately 0.14 mm in diameter. The larvae have six legs, are the same colour as the eggs, and are only slightly larger. The larvae of Amblydromalus limonicus

Crane flies

General The larvae of crane flies , called leatherjackets, live in the soil and feed on roots and shoots (which they pull into the ground of mainly grasses [...] within one week and then feed on roots and crowns of grasses during the autumn.. Larvae overwinter in the soil, usually in the third instar stage. and start [...] again and feed voraciously when the soil begins to warm up in spring. The larvae pupate below the soil surface in summer. The pupal stage lasts about two weeks