Defense Against the Green Peach Aphid and Potato Leafhopper by Glandular Trichomes of Solanum berthaultii123

1981 ◽  
Vol 74 (6) ◽  
pp. 721-725 ◽  
Author(s):  
Ward M. Tingey ◽  
Jean E. Laubengayer
Keyword(s):  
Green Peach Aphid ◽  
Glandular Trichomes ◽  
Potato Leafhopper

Glandular Trichomes on Alfalfa Impede Searching Behavior of the Potato Leafhopper Parasitoid

2000 ◽  
Vol 18 (3) ◽  
pp. 187-192 ◽  
Author(s):  
Aaron Lovinger ◽  
David Liewehr ◽  
William O Lamp
Keyword(s):  
Glandular Trichomes ◽  
Potato Leafhopper ◽  
Searching Behavior

scholarly journals CONTROL OF POTATO LEAFHOPPER AND GREEN PEACH APHID USING REDUCED RATES OF INSECTICIDES, 1999

2000 ◽  
Vol 25 (1) ◽  
Author(s):  
Joseph Munyaneza ◽  
David W. Ragsdale ◽  
Edward B. Radcliffe
Keyword(s):  
Green Peach Aphid ◽  
Potato Leafhopper

scholarly journals Comparative Efficacy of Common Active Ingredients in Organic Insecticides Against Difficult to Control Insect Pests

Insects ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 614
Author(s):  
Galen P. Dively ◽  
Terrence Patton ◽  
Lindsay Barranco ◽  
Kelly Kulhanek
Keyword(s):  
Colorado Potato Beetle ◽  
Insect Pests ◽  
Green Peach Aphid ◽  
Potato Leafhopper ◽  
Control Efficacy ◽  
Flea Beetles ◽  
Potato Beetle ◽  
Bean Beetle ◽  
Organic Insecticides ◽  
Control Insect

There exists a lack of control efficacy information to enable decision-making about which organic insecticide product works best for a given insect pest. Here, we summarize results of 153 field trials on the control efficacy of common active ingredients in organic insecticides against 12 groups of the most difficult to control insect pests. These trials evaluated primarily the organic products Entrust (spinosad), Azera (pyrethrin and azadirachtin), PyGanic (pyrethrin) and Neemix (azadirachtin), which reduced pest infestations by an overall 73.9%, 61.7%, 48.6% and 46.1% respectively, averaged across all trials. Entrust was the most effective control option for many insect pests, particularly providing >75% control of flea beetles, Colorado potato beetle, cabbageworms and alfalfa weevil, but was relatively ineffective against true bugs and aphids. Azera provided >75% control of green peach aphid, flea beetles, Japanese beetle, Mexican bean beetle, potato leafhopper and cabbageworms. PyGanic was less effective than Entrust and Azera but still provided >75% control of green peach aphid, flea beetles and potato leafhopper. The growth inhibition effects of azadirachtin in Neemix were particularly effective against larvae of Mexican bean beetle and Colorado potato beetle but was generally less effective in trials with insect infestations consisting mainly of adult stages. Those insect pests that were particularly difficult to control included thrips, stinkbugs, cucumber beetles and fruitworms. Several caveats pertaining to the application of the results are discussed.

scholarly journals Comparing Host Plant Resistance, Engineered Resistance, and Insecticide Treatment for Control of Colorado Potato Beetle and Potato Leafhopper in Potatoes

2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Gerald M. Ghidiu ◽  
David S. Douches ◽  
Kimberly J. Felcher ◽  
Joseph J. Coombs
Keyword(s):  
Host Plant ◽  
Plant Resistance ◽  
Colorado Potato Beetle ◽  
Host Plant Resistance ◽  
Glandular Trichomes ◽  
Potato Leafhopper ◽  
Management Options ◽  
Potato Leaf ◽  
Potato Beetle ◽  
Engineered Resistance

The Colorado potato beetle,Leptinotarsa decemlineata(Say) Order Coleoptera and the potato leafhopper,Empoasca fabae(Harris) Order Homoptera, are the major insect pests of potato in eastern North America. In two years of field trials, we compared the effectiveness of three pest management options for the control of Colorado potato beetle and potato leafhopper: natural host plant resistance (glandular trichomes), engineered resistance (Bacillus thuringiensis[Bt] Berlinercry3Agene) and a susceptible potato cultivar (Superior) with an at-planting application of the insecticide thiamethoxam. Similar and acceptable control of the Colorado potato beetle larvae was obtained with theBt-cry3Alines and the thiamethoxam treated “Superior” variety. The glandular trichome cultivar had significantly less Colorado potato beetle damage than did the untreated “Superior” in 2004, although damage was significantly greater than in theBt-cry3Alines and the insecticide-treated potatoes for both years, and was the only treatment that consistently had very little potato leafhopper damage. These data demonstrate that although each type of host plant resistance mechanism (Bt-cry3Aor glandular trichomes) was as effective as the chemical control against one of the insects, neither provides adequate resistance to both Colorado potato beetle and potato leaf hopper.

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