scholarly journals Colorado Potato Beetle Control on Potatoes With Foliar Insecticide Sprays, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 153-153
Author(s):  
James J. Linduska ◽  
Marylee Ross ◽  
Donna Baumann ◽  
Carol Cain ◽  
Melanie Boltz
Keyword(s):  
Colorado Potato Beetle ◽  
Compressed Air ◽  
Loamy Sand ◽  
Single Treatment ◽  
Egg Masses ◽  
Row Crop ◽  
Potato Beetle ◽  
Insecticide Sprays ◽  
Direct Counts

Abstract ‘Red Norland’ potatoes were planted in 20 foot rows on 8 Apr, ‘96. Plots consisted of a single treatment row. The distance between rows was 64 inches and the distance between plants within the row was 10 inches. Plots were arranged in a RCB design with 4 replications. The soil was a Norfolk “A” loamy sand. All spray treatments were mixed in 1.5 gallons of water and applied with a custom built compressed air row crop sprayer. Each row was covered by 6 drop nozzles delivering 50 gpa at 30 psi. Treatments were applied 26 May. Novodor plots were sprayed 24 and 26 May. In evaluating the treatments, direct counts of the number of Colorado potato beetle adults, larvae, egg masses/10 plants and the % defoliation were recorded. Yields were taken on 28 Jun from 20 feet of row.

scholarly journals Colorado Potato Beetle Control on Potatoes With Microbial Insecticides, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 143-143
Author(s):  
James J. Linduska ◽  
Marylee Ross ◽  
Karen Mulford ◽  
Donna Baumann
Keyword(s):  
Colorado Potato Beetle ◽  
Rating Scale ◽  
Compressed Air ◽  
Loamy Sand ◽  
Single Treatment ◽  
Row Crop ◽  
Potato Beetle ◽  
Direct Counts

Abstract ‘ Red Norland’ potatoes were planted in 20 foot rows on 29 Mar, ’95. Plots consisted of a single treatment row. The distance between rows was 64 inches and the distance between plants within the row was 10 inches. Plots were arranged in a RCB design with 4 replications. The soil is a Norfolk “A” loamy sand. All spray treatments were mixed in 1.5 gallons of water and applied with a custom built compressed air row crop sprayer. Each row was covered by 6 drop nozzles delivering 50 gallacre at 30 psi. Treatments were applied 19 and 24 May and 4 Jun. Plots were treated with Asana XL 0.05 Ib (AI)/acre and PBO 8EC 0.375 Ib (AI)/acre on 9 and 19 Jun to control Colorado potato beetle adults. In evaluating the treatments, direct counts of the number of CPB adults, larvae, and egg masses110 plants and % defoliation were recorded. Defoliation categories were assigned using a pretransformed defoliation rating scale, based on dividing 90° into 13 steps corresponding to arcsin transformation values (Little & Hills 1978). Yields were taken on 26 Jun from 20 feet of row.

scholarly journals Colorado Potato Beetle Control on Potatoes with In-Furrow Treatments, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 115-115
Author(s):  
James J. Linduska ◽  
Marylee Ross ◽  
Karen Mulford ◽  
John Nottingham
Keyword(s):  
Colorado Potato Beetle ◽  
Rating Scale ◽  
Block Design ◽  
Compressed Air ◽  
Single Treatment ◽  
Egg Masses ◽  
Row Crop ◽  
Potato Beetle ◽  
Randomized Complete Block Design ◽  
Direct Counts

Abstract ‘Kennebec’ potatoes were planted in 20 foot rows on 25 Apr, ‘94. Plots consisted of a single treatment row. The distance between rows was 64 inches and the distance between plants within the row was 10 inches. Plots were arranged in a randomized complete block design with 4 replications. The soil was a Norfolk "A" loamy sand. Initial furrow treatments were applied to the seed at the rate of 20 gal per acre with a small watering can. Admire foliar treatments were applied at a rate of 50 gal per acre on 8, 23 and 29 Jun with a custom built compressed air row crop sprayer with each row being covered by 6 drop nozzles delivering 50 gal/acre at 30 psi. In evaluating the treatments, direct counts of the number of Colorado potato beetle adults, larvae and egg masses/10 plants and the % defoliation were recorded. Defoliation categories were assigned using a pretransformed defoliation rating scale, based on dividing 90° into 13 steps corresponding to arcsin transformation values (Little & Hills 1978). Yields were taken on 20 Jul from 20-ft of row.

scholarly journals Colorado Potato Beetle Control on Potatoes with Foliar Insecticide Sprays, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 117-117
Author(s):  
James J. Linduska ◽  
Marylee Ross ◽  
Karen Mulford ◽  
John Nottingham
Keyword(s):  
Colorado Potato Beetle ◽  
Rating Scale ◽  
Block Design ◽  
Single Treatment ◽  
Row Crop ◽  
Potato Beetle ◽  
Randomized Complete Block Design ◽  
Control Adult ◽  
Insecticide Sprays ◽  
Direct Counts

Abstract ‘Kennebec’ potatoes were planted in 20 foot rows on 11 Apr, ‘93. Plots consisted of a single treatment row. The distance between rows was 64 inches and the distance between plants within the row was 10 inches. Plots were arranged in a randomized complete block design with 4 replications. The soil was a Norfolk “A” loamy sand. All spray treatments were mixed in 1.5 gallons of water and applied with a custom built compressed air row crop sprayer. Each row was covered by 6 drop nozzles delivering 50 gal/acre at 30 psi. Treatments were applied 1, 9, 21 and 29 Jun. On 21 and 29 Jun, Kryocide and Novodor plots were sprayed with Asana XL 0.05 lb Al/acre and PBO 8EC 0.375 lb Al/acre to control adult Colorado Potato Beetle. Abamectin plots were treated with Asana XL 0.05 lb Al/acre and PBO 8EC 0.375 lb Al/acre on 21 Jun to control adult CPB. In evaluating the treatments, direct counts of the number of Colorado potato beetle adults, larvae, egg masses/10 plants and the % defoliation were recorded. Defoliation categories were assigned using a pretransformed defoliation rating scale, based on dividing 90° into 13 steps corresponding to arcsin transformation values (Little & Hills 1978). Yields were taken on 8 Jul from 20 feet of row.

scholarly journals Control of Colorado Potato Beetle, 1997A

1998 ◽  
Vol 23 (1) ◽  
pp. 127-127
Author(s):  
Craig A. Longtine ◽  
David W. Ragsdale ◽  
Edward B. Radcliffe
Keyword(s):  
Colorado Potato Beetle ◽  
Potato Field ◽  
Plant Spacing ◽  
Single Treatment ◽  
Randomized Design ◽  
Potato Beetle ◽  
Commercial Potato ◽  
Completely Randomized Design ◽  
Direct Counts ◽  
Flat Fan Nozzle

Abstract This trial was located in a non-irrigated commercial potato field near Hollandale in southern Minnesota. Plots consisted of a single treatment row 25 ft in length bordered on each side by two untreated guard rows. Plant spacing was 36 inches between rows and 12 inches between plants within rows. Treatments were replicated four times in a completely randomized design. Treatments were applied with a CO2-pressurized backpack sprayer fitted with a single Teejet 8003-E flat-fan nozzle delivering 40 gpa/acre at 35 psi. All treatments were applied on 2 Jul. Spraying conditions were windy, but winds were constant. In evaluating the treatments, direct counts of early instars (first and second) and late instars (third and fourth) were made on every plant in each plot on 3 Jul. The data were subjected to analyses of variance following log10(x +1) transformation.

scholarly journals COLORADO POTATO BEETLE CONTROL ON POTATOES WITH FOLIAR INSECTICIDE SPRAYS, 1998

1999 ◽  
Vol 24 (1) ◽  
Author(s):  
James J. Linduska ◽  
Marylee Ross ◽  
Donna Baumann ◽  
Mitch Lemuiex
Keyword(s):  
Colorado Potato Beetle ◽  
Potato Beetle ◽  
Insecticide Sprays

scholarly journals Control of Colorado Potato Beetle, 1997B

1998 ◽  
Vol 23 (1) ◽  
pp. 128-128
Author(s):  
Craig A. Longtine ◽  
Edward B. Radcliffe ◽  
David W. Ragsdale
Keyword(s):  
Plant Spacing ◽  
University Of Minnesota ◽  
Single Treatment ◽  
Population Densities ◽  
Randomized Design ◽  
Potato Beetle ◽  
Completely Randomized Design ◽  
The University ◽  
Over The Top ◽  
Direct Counts

Abstract Potatoes were planted 20 May at the University of Minnesota Agricultural Experi-ment Station, Rosemount, MN. Plots consisted of a single treatment row 30 feet in length with 10 feet of untreated potatoes between plots within rows. Plant spacing was 36 inches between rows and 12 inches between plants within rows. Treatments were arranged in a completely randomized design with 4 replications. Treated rows were separated by one row of untreated potatoes. Admire 2F was applied over the top of the potato pieces just before the furrows were covered. Foliar applications were made on 15 Jul with a CO2-pressurized sprayer fitted with a Teejet 8003-E flat-fan nozzle delivering 40 gpa at 35 psi. CPB population densities were determined by counting larvae on every plant in each plot on 16 Jul. In evaluating the treatments, direct counts of early instars (first and second) or late instars (third and fourth) were recorded. Analyses of variance was performed on data after log10(x +1) transformation.

scholarly journals Colorado Potato Beetle Control on Potatoes with Foliar Insecticide Sprays, 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 126-126
Author(s):  
James J. Linduska ◽  
Marylee Ross ◽  
Donna Baumann ◽  
Annika Parr
Keyword(s):  
Colorado Potato Beetle ◽  
Potato Beetle ◽  
Insecticide Sprays

scholarly journals Colorado Potato Beetle Control on Potatoes With Foliar Insecticide Sprays, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 143-144
Author(s):  
James J. Linduska ◽  
Marylee Ross ◽  
Karen Mulford ◽  
Donna Baumann
Keyword(s):  
Colorado Potato Beetle ◽  
Potato Beetle ◽  
Insecticide Sprays
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