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cycle of a leaf miner has the following stages: egg, three larval instars, a pupal instar and the adult fly. Adult leaf miners are small yellow and…
diseases and can be a nuisance to greenhouse works by their sheer numbers. Frass deposited on leaves or flowers in ornamental crops, lettuce and herbs…
whitefly need a lot of protein for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and the excess is…
Macrosiphum rosae , is a serious and often abundant pest of roses. It is virtually cosmopolitan and widely spread in Europe. Life cycle and appearance…
disease, Newcastle disease, fowlpox, avian leucosis and infectious bursitis a.k.a. Gumboro disease); and avian coccidiosis. They damage the poultry…
inserted into the plant tissue with a saw-like ovipositor. Larvae are light to yellowish green in colour, with a large head and bright red eyes. The…
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