dark grey or brown to black and has two transverse crests and one median ridge that together form the letter H. On citrus, early stages might be…
webbing. The eggs are about 0.15 mm in diameter, dark red, and oval with small ridges running top to bottom, with a thin stalk on top. They look a bit…
until they are a brown-black or sometimes even a purple colour. They are ridged and have a light network of markings. First instar larvae of the…
suffused with a blue-grey in the middle and they have irregular surface ridging. The caterpillars have a small head that is grey-green to brownish…
the ‘female’ produces a white, fluted, wax ovisac with a series of uniform ridges running lengthwise over the surface. The ovisac may reach the same…
pushing it downwards out of the fixing ridges. At the same time, insert the receiver along the top edge of the fixing ridges (see figure 4.2). This…
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