SPREAD AND CURRENT DISTRIBUTION OF THE CASSAVA MEALYBUG, PHENACOCCUS-MANIHOTI (HOMOPTERA, PSEUDOCOCCIDAE), IN ZAIRE

被引：5

作者：

HENNESSEY, RD

NEUENSCHWANDER, P

MUAKA, T

机构：

[1] International Institute of Tropical Agriculture, Ibadan

[2] Project RAV, Kinshasa

来源：

TROPICAL PEST MANAGEMENT | 1990年 / 36卷 / 02期

关键词：

Cassava mealybug; Epidinocarsis lopezi; Phenacoccus manihoti; Zaire;

D O I：

10.1080/09670879009371451

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The cassava mealybug, Phenacoccus manihoti Mat.‐Ferr., spread in Zaire from foci at Kinshasa (1973), Mulandi (1978), and Goma (1982). It now occurs over an area of 560 000 km2, mainly in regions with a dry season of at least 90 days. Within these regions the pest occurs principally in areas having low green‐leaf biomass towards the end of the dry season. Mealybug populations reached catastrophic levels mostly during prolonged periods of drought. The exotic parasitoid Epidinocarsis lopezi (De Santis) has spread over 130000 km2in western Zaire and southern Shaba, where no further mealybug outbreak has since been recorded. © 1990 Taylor and Francis Ltd.

引用

页码：103 / 107

页数：5

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