scholarly journals Incidence De La Cochenille Farineuse Du Manguier Rastrococcus invadens Williams, 1986 (Homoptera ; Pseudococcidae) En Côte D\'ivoire

2009 ◽  
Vol 16 (3) ◽  
Author(s):  
N Hala ◽  
M Kehe ◽  
K Allou
Keyword(s):  
Rastrococcus Invadens ◽  
Cochenille Farineuse

Rastrococcus invadens Williams (Hemiptera: Pseudococcidae), a serious exotic pest of fruit trees and other plants in West Africa

1988 ◽  
Vol 78 (4) ◽  
pp. 695-702 ◽  
Author(s):  
D. Agounké ◽  
U. Agricola ◽  
H. A. Bokonon-Ganta
Keyword(s):  
Natural Enemies ◽  
Plant Material ◽  
Fruit Trees ◽  
West African ◽  
South East Asia ◽  
African Countries ◽  
Horticultural Crops ◽  
Rastrococcus Invadens ◽  
Exotic Pest ◽  
Indigenous Natural Enemies

AbstractRastrococcus invadens Williams has been the most important polyphagous pest of horticultural crops since 1982 in some West African countries. It originated in South-East Asia and was probably introduced on infested plant material. The pest has been reported up to 150 km north of the coast of Benin and 500 km north from the coast in Togo. Although the species is polyphagous, mango, citrus, breadfruit, banana, frangipani (Plumeria alba) and species of Ficus are among the most attacked hosts. Several indigenous natural enemies were identified, but their ability to regulate the populations of R. invadens is very low. The most important among the predators were the coccinellids Chilocorus nigrita (F.), Exochomus promtus Weise and E. troberti Mulsant and the lycaenids Spalgis spp. In Togo, an indigenous parasitoid, Anagyrus sp. ?nr aurantifrons Compere, has become adapted to the pest.

Aspects of the biology of Rastrococcus invadens Williams (Hemiptera: Pseudococcidae), a pest of fruit crops in West Africa, and one of its primary parasitoids, Gyranusoidea tebygi Noyes (Hymenoptera: Encyrtidae)

1988 ◽  
Vol 78 (4) ◽  
pp. 709-715 ◽  
Author(s):  
E. Willink ◽  
D. Moore
Keyword(s):  
Sex Ratio ◽  
West Africa ◽  
Control Programme ◽  
Similar Data ◽  
Fruit Crops ◽  
Suitable Candidate ◽  
Adult Lifespan ◽  
Rastrococcus Invadens ◽  
Two Generations ◽  
Biased Sex Ratio

AbstractRastrococcus invadens Williams, a serious pest of fruit crops in West Africa was studied under controlled conditions. The different stages of the mealybug are described and data given on development times, adult lifespan, fecundity, sex ratio and mortality rates. Similar data are also given for a primary parasitoid, Gyranusoidea tebygi Noyes. The parasitoid completed almost two generations for each one of the mealybug and had a female-biased sex ratio compared with a male-biased one for R. invadens. The parasitoid did not parasitize other species of mealybugs offered. G. tebygi was considered a suitable candidate for a biological control programme and was introduced into Togo in October 1987.

scholarly journals MORPHOMETRIC CHARACTERIZATION OF THE MANGO TREE’S MEALY COCHINEAL: RASTROCOCCUS INVADENS ON CITRUS TREE IN SENEGAL

2019 ◽  
Vol 04 (03) ◽  
pp. 331-349
Author(s):  
Amadou FALL ◽  
Mamour TOURE ◽  
Fawrou SEYE ◽  
Raymond Demba NDIONE ◽  
Thierno Seydou BADIANE ◽  
...  
Keyword(s):  
Citrus Tree ◽  
Rastrococcus Invadens ◽  
Morphometric Characterization
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