Imidacloprid Effects on Probing and Settling Behavior of Frankliniella fusca and Frankliniella occidentalis (Thysanoptera: Thripidae) in Tomato

2005 ◽  
Vol 98 (5) ◽  
pp. 1622-1629 ◽  
Author(s):  
P. Houston Joost ◽  
David G. Riley
Keyword(s):  
Frankliniella Occidentalis ◽  
Frankliniella Fusca ◽  
Settling Behavior

Effect of Imidacloprid on Settling Behavior of Frankliniella occidentalis and Frankliniella fusca (Thysanoptera: Thripidae) on Tomato and Peanut

2007 ◽  
Vol 42 (1) ◽  
pp. 74-83 ◽  
Author(s):  
David G. Riley
Keyword(s):  
Frankliniella Occidentalis ◽  
Western Flower Thrips ◽  
Primary Concern ◽  
Flower Thrips ◽  
Frankliniella Fusca ◽  
Vector Management ◽  
Choice Tests ◽  
Tobacco Thrips ◽  
Settling Behavior ◽  
Systemic Application

The effect of a systemic application of imidacloprid (Admire 2F®) on the settling of Frankliniella occidentalis (Pergande) (western flower thrips) and Frankliniella fusca (Hinds) (tobacco thrips) (Thysanoptera: Thripidae) was studied with leaf-choice tests in peanut and tomato. Settling behavior of F. occidentalis was significantly increased (by 48%) in peanut, but was not affected in tomato with a systemic application of imidacloprid by soil drench. Settling of F. fusca was significantly reduced by the same imidacloprid treatment in tomato (by 32%), but not in peanut. These results indicate that at-planting soil-applied imidacloprid in the field can increase the presence of flower thrips (F. occidentalis) in peanut, but decrease foliage thrips (F. fusca) in tomato. Thus, where early-season transmission of virus by F fusca is a primary concern in tomato, imidacloprid could provide some benefit in thrips vector management by reducing the amount of thrips settling on leaves.

Some characteristics of the thrip vector relationship of tomato spotted wilt virus in Canada

1976 ◽  
Vol 54 (5-6) ◽  
pp. 402-405 ◽  
Author(s):  
Y. C. Paliwal
Keyword(s):  
British Columbia ◽  
Tomato Spotted Wilt Virus ◽  
Frankliniella Occidentalis ◽  
First Generation ◽  
Thrips Tabaci ◽  
Eastern Canada ◽  
Tomato Spotted Wilt ◽  
Frankliniella Fusca ◽  
Wilt Virus ◽  
Relationship Of

Two isolates of tomato spotted wilt virus (TSWV) from British Columbia were transmitted by Frankliniella occidentalis, which is common in British Columbia but does not occur in eastern Canada. Frankliniella occidentalis from B.C. transmitted the virus to a smaller proportion of Emilia plants as compared with Frankliniella fusca, a known vector that occurs in eastern Canada, after a 48-h acquisition feeding as nymphs on infected Emilia leaves. Neither isolate of the virus was transmitted by Thrips tabaci, which is a vector of TSWV in some other countries. Males and females and macropterous and brachypterous forms of F. fusca did not differ significantly in their vector ability. TSWV was detected serologically in homogenates of 50 ‘exposed' F. fusca (first-generation adults reared on newly infected plants) but was difficult to detect in homogenates prepared from these thrips 2 weeks later. Thrip transmissibility of the virus declined considerably when propagated for long periods without passage through the thrip vector.

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