on stems on the lower portion of plants. When newly laid they are creamy white but turn to a patchy yellow as they age. The mites have two nymphal…
second instar larvae of thrips. Young whitefly eggs (less than 24 hours old, white in colour) are a much better prey than older whitefly eggs (more…
fruiting and the development of the potatoes. The plant’s flowers vary from white, pink, red or blue, to purple and have yellow stamens. After the…
they shed white skin, betraying their presence in the crop. Wingless green peach aphids (Myzus persicae subsp. persicae ) may be green, white-green,…
laid on the underside of leaves, often in the axil of veins. They are oval, white and are approximately 0.14 mm in diameter. The larvae have six legs,…
the plant tissue with a saw-like ovipositor. Larvae are nearly transparent white or yellowish to orange-yellow, with a large head and bright red eyes.…
abdomen grey-brown. The forewings have a yellowish, kidney-shaped mark. The white hindwings have a clearly outlined brown venation. The beet armyworm…
Fusarium and Sclerotinia and beneficial nematodes , Capirel, against onion fly (Delia Antiqua). The partnership with Koppert also has strengthened his…
bacterial exudate forms on the underside of the leaf. This exudate changes to a white film when it dries. Lesions may merge as they grow and later…
limonicus . They are roughly 0.4 mm in length. The eggs are oval, transparent to white in colour and are deposited on the underside of the leaves.…
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