scholarly journals GREEN PEACH APHID AND COLORADO POTATO BEETLE CONTROL WITH SEED TREATMENT INSECTICIDES, 1999

2000 ◽  
Vol 25 (1) ◽  
Author(s):  
Robert L. Stoltz ◽  
Nancy A. Matteson
Keyword(s):  
Colorado Potato Beetle ◽  
Seed Treatment ◽  
Green Peach Aphid ◽  
Potato Beetle

Potato Insect Control, Ft. Collins, Co 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 138-138
Author(s):  
Whitney Cranshaw ◽  
D. Casey Sclar ◽  
Aaron Spriggs ◽  
Jason Bishop
Keyword(s):  
Colorado Potato Beetle ◽  
Green Peach Aphid ◽  
Flea Beetle ◽  
Field Research ◽  
Egg Laying ◽  
Potato Beetle ◽  
Two Samples ◽  
Plant Emergence ◽  
Potato Insect ◽  
The Hill

Abstract Plots were established at the Department of Horticulture Field Research Center; north of Ft. Collins, CO. Planting was done 12 May, establishing a series of 2-row plots, 30-ft in length. Plot design was a RCB with 4 replications. Admire applications were made to the soil along the sides of the hills and incorporated to a depth of 1-2 inches with a hand cultivator on 5 June, shortly after plant emergence. Soil applications of Granusol Magnesium were applied and incorporated into the hill on 24 June and 24 July. All foliar treatments were applied 27 June and 14 July (immediately after plot evaluations) using a CO2 compressed air sprayer with a single flat fan nozzle delivering 20 gal gal/acre at 45 psi in a series of passes that covered the top and both sides of each row. At the time of original treatment Colorado potato beetle mating and egg laying was common, with some recently hatched larvae present. Evaluations of Colorado potato beetle (CPB) larvae were made 30 June and 13 July by counting all larvae on the center 20-ft of each row. Populations dropped sharply after this point, preventing subsequent sampling. Potato flea beetle samples were taken on 4 dates, making 6 sweeps row (12 sweeps/plot) on the first two samples and 8 sweeps/plot on the subsequent samples. Green peach aphid and potato/tomato psyllid were enumerated by counting insects on 35 leaves per plot.

scholarly journals COLORADO POTATO BEETLE AND GREEN PEACH APHID CONTROL WITH SEED-PIECE TREATMENTS, 2000

2001 ◽  
Vol 26 (1) ◽  
Author(s):  
P. M. Denke ◽  
S. L. Blodgett ◽  
K. Kephart ◽  
J. Mickelson
Keyword(s):  
Seed Piece ◽  
Colorado Potato Beetle ◽  
Green Peach Aphid ◽  
Potato Beetle ◽  
Aphid Control

scholarly journals RESISTANCE TO THE COLORADO POTATO BEETLE AND GREEN PEACH APHID IN INTERSPECIFIC SOLANUM HYBRIDS.

HortScience ◽  
1990 ◽  
Vol 25 (4) ◽  
pp. 400I-400
Author(s):  
Jim Mooney ◽  
Shelley H. Jansky
Keyword(s):  
Colorado Potato Beetle ◽  
Interspecific Hybrids ◽  
Green Peach Aphid ◽  
Wild Potato ◽  
Norgold Russet ◽  
Feeding Period ◽  
Wild Potato Species ◽  
Potato Beetle ◽  
Feeding Trials ◽  
Diploid Level

Resistance to the Colorado potato beetle (CPB) and green peach aphid (GPA) would be valuable if it could be effectively transferred from wild potato species to the cultivated potato. Eighteen diploid interspecific hybrids have been developed using Solanum tuberosum Gp. Tuberosum haploids (2n = 2x = 24) and the diploid wild species S. berthaultii (ber), S. chacoense (CHC), S. jamesii (jam), and S. tarijense (tar). Twenty-five genotypes per family were screened for resistance to CPB and GPA. Feeding trials were carried out on intact leaves. The degree of resistance to CPB was determined by the stage of instar development and weight of larvae after a four day feeding period; resistance to GPA was evaluated by aphid reproduction and survival after a fifteen day feeding period. Highly CPB or GPA resistant clones, compared to `Norgold Russet',, have been identified thus far. Some clones express high levels of resistance to both CPB and GPA. Crosses between resistant clones and S. tuberosum will be carried out at the diploid level in an attempt to combine resistance with good tuberization qualities.

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 RESISTANCE TO THE COLORADO POTATO BEETLE AND GREEN PEACH APHID IN INTERSPECIFIC SOLANUM HYBRIDS.

HortScience ◽  
1990 ◽  
Vol 25 (4) ◽  
pp. 400i-400
Author(s):  
Jim Mooney ◽  
Shelley H. Jansky
Keyword(s):  
Colorado Potato Beetle ◽  
Interspecific Hybrids ◽  
Green Peach Aphid ◽  
Wild Potato ◽  
Norgold Russet ◽  
Feeding Period ◽  
Wild Potato Species ◽  
Potato Beetle ◽  
Feeding Trials ◽  
Diploid Level

Resistance to the Colorado potato beetle (CPB) and green peach aphid (GPA) would be valuable if it could be effectively transferred from wild potato species to the cultivated potato. Eighteen diploid interspecific hybrids have been developed using Solanum tuberosum Gp. Tuberosum haploids (2n = 2x = 24) and the diploid wild species S. berthaultii (ber), S. chacoense (CHC), S. jamesii (jam), and S. tarijense (tar). Twenty-five genotypes per family were screened for resistance to CPB and GPA. Feeding trials were carried out on intact leaves. The degree of resistance to CPB was determined by the stage of instar development and weight of larvae after a four day feeding period; resistance to GPA was evaluated by aphid reproduction and survival after a fifteen day feeding period. Highly CPB or GPA resistant clones, compared to `Norgold Russet',, have been identified thus far. Some clones express high levels of resistance to both CPB and GPA. Crosses between resistant clones and S. tuberosum will be carried out at the diploid level in an attempt to combine resistance with good tuberization qualities.

PROLONGED DORMANCY IN A PACIFIC NORTHWEST POPULATION OF THE COLORADO POTATO BEETLE, LEPTINOTARSA DECEMLINEATA (SAY) (COLEOPTERA: CHRYSOMELIDAE)

1990 ◽  
Vol 122 (1) ◽  
pp. 175-177 ◽  
Author(s):  
K.D. Biever ◽  
R.L. Chauvin
Keyword(s):  
United States ◽  
Pacific Northwest ◽  
Colorado Potato Beetle ◽  
Green Peach Aphid ◽  
Management Strategies ◽  
Potato Production ◽  
The United States ◽  
Basic Knowledge ◽  
Potato Beetle ◽  
Prolonged Diapause

The Colorado potato beetle is a major worldwide pest of potato and several other solanaceous plants. Insecticidal resistance is a serious problem in the northeastern and mid-Atlantic regions of the United States and a developing problem in other potato production areas of the United States and Canada (Forgash 1985; Johnson and Sandvol 1986; Boiteau et al. 1987). In the northwestern United States, insecticides applied to control the green peach aphid also control Colorado potato beetle, but these insecticides are likely to become ineffective due to the development of resistance or unavailable because of restricted use and environmental concerns. Biologically based management strategies are needed to reduce dependency on insecticides; these strategies require new basic knowledge including understanding prolonged diapause in populations of the Colorado potato beetle. Krysan et al. (1986) established that the occurrence of prolonged or repeated diapause can influence management strategies for insects, especially with respect to crop rotation.

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