Soft scale insect Pulvinaria tenuivalvata infesting sugar-cane

Soft scale insect Pulvinaria tenuivalvata infesting sugar-cane

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Soft scale insect Pulvinaria tenuivalvata attacking sugar-cane at Attfieh region, Giza Governorate is considered an economic important insect pest on sugar-cane in Egypt from mid-1990s. The main topics of this present study can be summarized as follows: Population dynamics of P. tenuivalvata, its rate of growth and survey of predators and parasitoids associated were conducted through careful inspection of sugar-cane fields. Nymphal infestation started from apical part of plant in the two studying seasons. Also, adult infestation started on apical part of sugar-cane plant in first and second se...