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 and cereal crops. The adults do not cause an
General The circular scale, Chrysomphalus aonidum is a tropical species, native to the Oriental region but it has been dispersed widely in tropical and subtropical parts of the world, mostly in associ
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
General Click beetles are elongate beetles with a hard exoskeleton, with the head deeply retracted into the thorax. When disturbed they lie on their back feigning death and then suddenly propel themse
General The onion thrips (Thrips tabaci) is distributed throughout the world. It is found outdoors on many plants and particularly damaging on onions, leek, and in greenhouses on cucurbits, tomato, sw
General The tomato russet mite (Aculops lycopersici , also referred to as Vasates lycopersici, Vasates destructor and Phyllocoptes destructor in older publications) belongs to the family Eriophyidae.
Biological control of mealybugs and scales Mealybugs and scale insects are persistent pests that feed on plant sap, weakening crops and producing honeydew that leads to sooty mould. Infestations reduc
General The American serpentine leaf miner ( Liriomyza trifolii ) originates from North America, but occurs also in Europe since about 1976. The American serpentine leaf miner ( Liriomyza trifolii ) i
General The pea leaf miner (Liriomyza huidobrensis), occurs in a variety of vegetable and ornamental crops. It originates from South and Middle America and has subsequently spread via plant material.
General The tomato leaf miner (Liriomyza bryoniae) has many host plants and has caused crop damage in many parts of the world, including North Africa, Europe and northern Asia. In warmer regions, the