Beneficial microorganisms

, causing internal damage. This can lead to the insect's death. Spore production: As the insect succumbs to the fungal infection, the fungus continues

Powdery mildew

relative humidity (RH) promotes germination of spores but inhibits spore production, so the net effect of the RH is very small. Wind and draught in greenhouses

Beet armyworm

General The beet armyworm (Spodoptera exigua) has become a regular problem for horticulturalists due to its resistance to nearly all insecticides, and its ability to develop on wild vegetation during

Cutworms

General Cutworms ( Agrotis spp.) are occurring worldwide. Important species are for instance the black cutworm Agrotis ipsilon and the turnip moth Agrotis segetum . The larvae of these moths usually f

Shore fly

other unicellular organisms, they do not cause any direct damage to plant production. However, they are considered a nuisance pest because the flies : Leave

Corn rootworm

facilitate the development of toxic fungi in the cob, with the resulting production of mycotoxins. Life cycle and appearance In Europe, the western corn rootworm

Lesser Mealworm

General The darkling beetle, or lesser mealworm, Alphitobius diaperinus is one of the most abundant insects found on the floor of poultry houses. It has long been known as a common pest worldwide, and

Trial results onion fly and bean seed fly

gone into the selection, production and quality control of our beneficial nematodes. Each of the nematodes produced by Koppert has been selected to target

Codling moth

General The codling moth ( Cydia pomonella ) is a notorious, worldwide pest of apple and also occasionally of pear, quince, peach and other fruits. It is very common in Europe. Damage symptoms After i

Knowledge