The effect of controlling Mononychellus tanajoa (Acari:Tetranychidae) the cassava green spider mite using Typhlodromalus aripo (Acari: phytoseiidae) on the severity of cassava diseases in Transition forest, Nigeria

2002 ◽  
Vol 21 (7) ◽  
pp. 523-527 ◽  
Author(s):  
N.A Amusa ◽  
J.B Ojo
Keyword(s):  
Spider Mite ◽  
Mononychellus Tanajoa ◽  
Typhlodromalus Aripo ◽  
Cassava Green Spider Mite

Introduction and spread of the cassava green mite, Mononychellus tanajoa (Bondar) (Acari: Tetranychidae), an exotic pest in Africa and the search for appropriate control methods: a review

1988 ◽  
Vol 78 (1) ◽  
pp. 1-13 ◽  
Author(s):  
J. S. Yaninek ◽  
H. R. Herren
Keyword(s):  
Control Strategy ◽  
Spider Mite ◽  
Classical Biological Control ◽  
Present Knowledge ◽  
Mononychellus Tanajoa ◽  
Control Methods ◽  
Cassava Green Mite ◽  
History Of ◽  
Green Mite ◽  
Exotic Pest

AbstractMononychellus tanajoa (Bondar), a spider mite new to Africa, was discovered on cassava in Uganda in 1971. This exotic mite of Neotropical origin has since spread to 27 countries, causing an estimated 13–80% reduction in cassava yield. The history of its introduction and spread in Africa is reported, and present knowledge on the taxonomy, biology, ecology and pest status of the mite, and the evolution of strategies to control it are reviewed. While attempts have been made to control M. tanajoa, it remains a serious pest in most areas. The prospects for classical biological control as an appropriate control strategy are discussed.

Preselecting predatory mites for biological control: the use of an olfactometer

1990 ◽  
Vol 80 (2) ◽  
pp. 177-181 ◽  
Author(s):  
A. Janssen ◽  
C.D. Hofker ◽  
A.R. Braun ◽  
N. Mesa ◽  
M.W. Sabelis ◽  
...  
Keyword(s):  
Biological Control ◽  
Natural Enemy ◽  
Spider Mite ◽  
Prey Species ◽  
Prey Selection ◽  
Predatory Mites ◽  
Mononychellus Tanajoa ◽  
Cassava Green Mite ◽  
Cassava Leaves ◽  
Green Mite

AbstractPrevious investigations showed that (1) predatory mites use odours volatilizing from spider-mite infested plants for remote prey selection and (2) the response to the volatiles is correlated to the predator's ability to control populations of the prey species. Based on this correlation, it is hypothesized that preselecting predatory mites with the aid of olfactometer experiments will increase the probability of finding an efficient natural enemy. Y-tube olfactometer experiments with 11 species of phytoseiids showed that only four species were attracted by the odour of cassava leaves infested with cassava green mite Mononychellus tanajoa (Bondar). If the hypothesis mentioned above is valid, the probability of finding an efficient natural enemy within this group of four will be higher than finding one by randomly taking a species from the initial group of 11 species. Since testing of phytoseiids with an olfactometer can be done in a few hours, it is suggested that these tests precede more laborious evaluation methods.

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