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Studies on the scale insects that attack the Japanese persimmon Diospyros kaki L. II. Interrelationships between overwintered larvae of the Japanese wisteria cottony mealybug, Planococcus kraunhiae Kuwana, and the elongate cottony scale, Phenacoccus pergandei Cockerell, in the orchard


, : Studies on the scale insects that attack the Japanese persimmon Diospyros kaki L. II. Interrelationships between overwintered larvae of the Japanese wisteria cottony mealybug, Planococcus kraunhiae Kuwana, and the elongate cottony scale, Phenacoccus pergandei Cockerell, in the orchard. Japanese Journal of Applied Entomology and Zoology 15(4): 211-214

Surveys in Japan in an orchard persimmon (Diospyros kaki) infested by Planococcus kraunhiae (Kuw.) and Phenacoccus pergandei Ckll. showed that, though in early spring overwintered individuals of both species were present on the buds, those of the first species were significantly more abundant on the topmost buds of the twigs than on those lower down, while those of the second were distributed more or less evenly on all buds.

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