even very low numbers of thrips can cause damage by transmitting viruses, or by reducing aesthetic value by damaging flowers, e.g. in roses The…
symptoms Most of the damage is caused by the older caterpillars which are voracious leaf feeders. Extensive feeding by the larvae may lead to complete…
world. Under natural conditions, the larvae of these species are parasitized by parasitic wasps and so cause few problems. However, the use of…
your crop Life cycle of thrips Thrips damage Thrips cause damage to the plant by piercing the cells of the surface tissue and sucking out their…
at once, tunnelling down into the mesophyll tissue where damage is caused by extensive mines, leaving the outer layers of the leaf intact. Shortly…
in other sheltered places. The prepupal and pupal instars can be recognized by their developing wing buds. Compared with the prepupa, the pupa has…
plants and are mostly host plant specific. Apart from the damage they cause by sucking plant sap, mealybugs and soft scales also produce honeydew (on…
polyphagous aphid found on more than 700 plant species. Crop plants attacked by this aphid include cotton, citrus, coffee, cocoa, eggplant, cucumber,…
common crop pests. The two-spotted spider mite , Tetranychus urticae , is by far the most important species in greenhouses and many outdoor crops.…
Damage symptoms The damage caused by the broad mite ( Polyphagotarsonemus latus ) can look similar to the damage caused by viruses. The typical…
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