Evaluation of Mexican Bean Beetle (Coleoptera: Coccinellidae) Host Selection, Survival, and Feeding Injury Among Snap Bean and Lima Bean Cultivars

Nottingham, Louis; Kuhar, Thomas P.

doi:10.1093/jee/toy391

Cited by 2 publications

(2 citation statements)

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“…Soybean was clearly the least preferred, with the lowest recaptures for all trials and factors. These results reflect past studies demonstrating the preference of E. varivestis to wax beans over most green snap bean and lima beans cultivars, and all soybeans (Friend and Turner 1931, Campbell and Brett 1966, Raina et al 1978, Nottingham and Kuhar in press). DT had more immigrated recaptures than all other cultivars, suggesting that it was the most attractive cultivar to dispersing E. varivestis .…”

Section: Resultssupporting

confidence: 90%

“…Our goal was to use this information to determine the potential for these cultivars in trap cropping or push–pull strategies. The cultivars tested (‘Dragon’s Tongue’ [DT] purple wax snap, ‘Rocdor’ yellow wax snap, ‘Caprice’ green snap, ‘Fordhook’ bush lima, and ‘Hutchison’ field soybean) were chosen based on our corresponding study measuring cultivar susceptibility, in which we determined that each of the cultivars exhibit significantly different levels of attraction for oviposition by wild E. varivestis in field plots (Nottingham and Kuhar, in press). Here we examine two specific factors of host attraction important to trap cropping and push–pull strategies: 1) the ability of a cultivar to lure beetles out of another acceptable host cultivar; and 2) the ability of a cultivar to retain beetles from moving into other cultivars or offsite.…”

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confidence: 99%

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Examining Host Selection by Mexican Bean Beetle (Coleoptera: Coccinellidae) Using Mark-Release-Recapture

Nottingham

Kuhar

2019

Journal of Insect Science

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Mexican bean beetle, Epilachna varivestis Mulsant, is a pest of snap bean and lima bean in the eastern United States. This pest is susceptible to many insecticides available to conventional growers; however, organic management using parasitoid releases and organic insecticides have inconsistent results. In the interest of developing cultural management techniques such as trap crops or push–pull systems, five bean cultivars were evaluated for preferential host selection by E. varivestis using marked beetles in field cages and open plots. Beetles were marked with a water-based paint pen and their locations on plants monitored over time. In field cages, the purple wax bean, Dragon’s Tongue (DT), was preferred over yellow wax, green bean and lima bean; soybean was the least preferred overall. Recaptures of E. varivestis adults in open field plots progressively decreased following beetle release, suggesting the affinity of adults to disperse despite being on or near acceptable hosts. The two wax beans were equally preferred in open field experiments, partially more than the green and lima bean and consistently more than the soybean. These experiments suggest that DT may be a suitable crop for trap cropping or attract and kill strategies for E. varivestis.

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Section: Resultssupporting

confidence: 90%

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confidence: 99%