central leaves which have long, longitudinal grooves when growing. On onion leaves, the larvae feed on the parenchyma inside the hollow leaves,…
. The foliage is denser and the leaves are a darker green than usual. Also, young infected trees show dwarfing. Leaves and flowers appear early and…
water is present on the plant, at high relative humidity (RH) and on wounds. Leaves can be infected directly, through wounds, hydathodes (the end of…
attacks sweet pepper, cucumber and eggplants. It lives exclusively on the leaves and is often present on weeds in greenhouses. About Impatiens thrips…
this decreases the duration of leaf wetness Shred fallen leaves in autumn/winter Spray fallen leaves with urea Ensure that the microbial population as…
low number of attacked leaves are not greatly affected, but when the entire surface of leaves is covered with mines, the leaves start to dry out and…
miner ( Tuta absoluta) are the blotch-shaped mines in the leaves. Caterpillars prefer leaves and stems, but they may also occur underneath the crown…
mainly on the youngest leaves, producing skeletonized leaves, holes and frass on leaves. The caterpillars destroy large numbers of leaves and their…
‘leafroller’ refers to the fact that the caterpillars often live in rolled-up leaves. Although some species are restricted to a single crop, most are…
of young leaves, where they deposit their eggs. When shaking infested plants, adults will first fly, then return to the underside of the leaves. The…
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