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1 October 2014 Evaluation of a Push-Pull Strategy for the Management of Frankliniella bispinosa (Thysanoptera: Thripidae) in Bell Peppers
Kara Tyler-Julian, Joe Funderburk, Galen Frantz, Charles Mellinger
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A push—pull strategy for managing the anthophilous Frankliniella bispinosa (Morgan) in pepper and increasing conservation biological control was evaluated. Push components of ultra-violet (UV)-reflective mulch and foliar applications of kaolin and the pull component of sunflower companion plants were evaluated in replicated field experiments in 2011 and 2012. Adult F. bispinosa rapidly colonized and reproduced in the peppers and sunflowers during early flowering, but populations declined later, as numbers of the predatory Orius insidiosus (Say) and Orius pumilio (Champion) increased in both hosts. Numbers of F. bispinosa were reduced by kaolin during early pepper flowering. Thrips numbers were increased on some of the later sample dates, apparently due to reduced predation that resulted from negative effects of kaolin and UV-reflective mulch on Orius populations. Numbers of thrips increased in peppers with companion plants during the first week of flowering each year, followed by declines in thrips numbers during the next 2 wk in 2011. There was little effect each year of the companion plants on the numbers of Orius in the pepper flowers. There was one date in 2011 and no dates in 2012 in which UV-reflective mulch or kaolin acted in concert with the presence of the companion plants to reduce thrips numbers in the main crop of pepper. Yield effects were not attributed to thrips damage. We conclude that sunflower companion plants did not act additively or synergistically with kaolin or UV-reflective mulch to reduce thrips and increase Orius populations in pepper.

© 2014 Entomological Society of America
Kara Tyler-Julian, Joe Funderburk, Galen Frantz, and Charles Mellinger "Evaluation of a Push-Pull Strategy for the Management of Frankliniella bispinosa (Thysanoptera: Thripidae) in Bell Peppers," Environmental Entomology 43(5), 1364-1378, (1 October 2014).
Received: 26 February 2014; Accepted: 16 July 2014; Published: 1 October 2014

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companion plant
Frankliniella bispinosa
UV-reflective mulch
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