scholarly journals Comparison of Various Soil Insecticides and Application Methods to Control Soil Insects in Sweet-Potatoes, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 171-171
Author(s):  
John Speese
Keyword(s):  
Agricultural Research ◽  
Row Spacing ◽  
Control Soil ◽  
Eastern Shore ◽  
Sweet Potatoes ◽  
Application Method ◽  
Soil Insects ◽  
Application Methods ◽  
Soil Insecticides ◽  
Extension Center

Abstract Sweetpotatoes were transplanted on 20 Jun at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of 3 rows 20 ft long with 3-ft between-row spacing. An untreated guard row separated each plot from its neighbor. Treatments were replicated 6 times in a RCB. Mocap treatments were applied preplanting and incorporated on 7 Jun. The Lorsban and Fipronil treatments were applied immediately before planting and incorporated on 20 Jun. The application method (15 inch band v. broadcast) for each treatment is indicated in the table. A backpack sprayer equipped with a 6 plant fan nozzle boom/3 rows was used to apply the broadcast treatments, and a single flat fan nozzle boom was used to apply the band treatments. In order to control the summer generations of the soil insects after the main treatment had broken down, the plots (except for the check) were sprayed with Sevin XLR at 1.00 lb (AI)/acre alternating weekly with Thiodan 3EC at 0.56 lb (AI)/acre on 22 and 30 Jul and 5 and 15 Aug. The same sprayer was used for the foliar treatments as was used for the broadcast treatments, both of which were applied in 21 gal water/acre at 40 psi.

scholarly journals Comparison of Various Soil Insecticides And Foliar Sprays for Soil Insect Control in Sweet Pota-Toes, Painter, Va, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 176-177
Author(s):  
John Speese
Keyword(s):  
Agricultural Research ◽  
Light Trap ◽  
Insect Control ◽  
Row Spacing ◽  
Insect Damage ◽  
Eastern Shore ◽  
Sweet Potatoes ◽  
Foliar Sprays ◽  
Soil Insecticides ◽  
Extension Center

Abstract Sweet potatoes were transplanted on 20 Jun at the Eastern Shore Agricultural Research and Extension Center, Painter. VA. Each plot consisted of 3 rows 20 ft long, planted on 3 ft row spacing. An untreated guard row separated each plot from each other. Treatments were replicated 6 times in a RCB design. In furrow and band treatments, and the initial foliar sprays were applied with a single nozzle boom backpack sprayer. Granular treatments were applied with a hand held shaker. The Mocap treatments were applied on 25 May to avoid phytotoxicity. The later foliar sprays were applied with a backpack sprayer using 6 flat fan nozzles/row and delivering 42 gal water/acre at 40psi. Thiodan sprays were applied on 7, 14, and 21 Jul. Sevin XLR was sprayed on 27 Jul in order to observe the restrictions on the number of applications allowed on the Thiodan label. Foliar sprays were applied in order to coincide with clickbeetle (adult wireworm) flights, as determined by the black light trap at Painter, VA. Layby treatments were applied on 26 Jul. On 11 Oct, the center row of each 3 row plot was harvested and 25 market sized roots were randomly selected, washed, and evaluated for insect damage.

scholarly journals Comparison of Various Soil Insecticides and Rates for Insect Control in Potatoes, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 160-161
Author(s):  
John Speese
Keyword(s):  
European Corn Borer ◽  
Agricultural Research ◽  
Row Spacing ◽  
Life Stages ◽  
Eastern Shore ◽  
Bare Ground ◽  
Corn Borer ◽  
Short Season ◽  
Soil Insecticides ◽  
Extension Center

Abstract Potatoes were planted in two fields on 15 March at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. One field was planted in the short season cultivar ‘Superior’, the other field in the long season cultivar ‘Snowden’. Plots in both fields consisted of 4 rows 25ft long on 3ft row spacing with 6ft of bare ground between plots. Treatments in both fields were applied in furrow prior to planting with a single nozzle boom backpack sprayer. Treatments were replicated 4 times in a RCB design. Foliar sprays (rates, dates and materials indicated in tables) were applied by a tractor-mounted sprayer delivering 40 gal water/acre at 100 psi. Spray decisions were based on the following CPB thresholds, determined by weekly counts on 10 randomly chosen stems/plot: 4 small larvae, 1.5 large larvae, or 0.5 adults/stem. Dates and life stages with significant differences are listed in the tables. Secondary pests on 10 randomly picked compound leaves/plot and percent defoliation were sampled on the dates indicated in the tables. Both fields were sprayed on 2 June with Monitor 4EC (lqt/acre) to control European corn borer.

scholarly journals Foliar Sprays to Control Insects in Fall Peppers, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 136-137
Author(s):  
John Speese
Keyword(s):  
Agricultural Research ◽  
Evaluation Criteria ◽  
Row Spacing ◽  
Plant Spacing ◽  
Eastern Shore ◽  
Hollow Cone ◽  
Foliar Sprays ◽  
Marketable Fruit ◽  
Extension Center

Abstract Peppers were transplanted on 31 Jul at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of two 25ft long rows with 3ft between row spacing and 1ft between plant spacing. Each plot was bordered on each side by an untreated guard row and replicated 4 times in a RCB design. Treatments were applied on the dates indicated in the table with a backpack sprayer using 3 hollow cone nozzles/row and delivering 60 gal water/acre at 40 psi. Evaluation criteria consisted of hand-harvest of marketable fruit on 10 healthy, uniform-sized plants/row (.00062 acre) and GPA counts on 5 randomly picked leaves/plot on 06 Oct. Harvesting was done in this manner due to uneven stands in some plots due to the drought.

scholarly journals Foliar Sprays to Control Insects on Spring Peppers, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 137-137
Author(s):  
John Speese
Keyword(s):  
Agricultural Research ◽  
Evaluation Criteria ◽  
Row Spacing ◽  
Eastern Shore ◽  
Foliar Sprays ◽  
Marketable Fruit ◽  
Extension Center

Abstract Peppers were transplanted on 22 May at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of two 25ft rows, planted on 3ft row spacing. Plots were separated from each other by an untreated guard row. Each treatment was replicated 4 times in a RCB design. Treatments were applied with a 3 nozzle boom backpack sprayer delivering 60 gal water/acre at 40 psi. Treatments were applied weekly beginning 19 Jul through 16 Sep. The aphidicides CGA 215944 and Provado were added to the pyrethroid treatments indicated in the table on 1,8, and 16 Sep after GPA populations had built up. Spod X was added to the Pounce treatments on the last four application dates to control BAW. The gallonage was increased to 73 gpa for the last 3 applications due to the growth of the plants. Evaluation criteria consisted of hand-harvests of market sized fruits from the more uniform row of each 2 row plot on the dates indicated in the table. This fruit was graded to remove any ECB or BAW damaged fruit and the remaining marketable fruit was weighed to determine yields. Numbers of GPA on 5 randomly picked leaves/plot were counted on the dates indicated in the table.

scholarly journals Comparison of Viral, Bacteriological, and Standard Insecticides for Control of the Fruitworm Complex in Fall Tomatoes, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 189-190
Author(s):  
John Speese
Keyword(s):  
Disease Control ◽  
Agricultural Research ◽  
Row Spacing ◽  
Eastern Shore ◽  
Hollow Cone ◽  
Extension Center

Abstract Tomatoes were transplanted into two fields on 27 Jul at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of a single 25ft row with 5ft between row spacing. Plots were replicated 3 times in a RCB design and separated from each other by untreated guard rows. The design in both fields was the same except for the number of treatments. Treatments were applied with a backpack sprayer using 3 hollow cone nozzles/row and delivering 45 gal waterlacre at 40 psi. Application dates for each field are indicated in the tables. Bravo 720 at 1.5pVacre was added to each treatment and the checks on 26 Sep and 02 Oct for disease control. On 9 Oct (Field I) and 16 Oct (Field 11). 25 green fruits were randomly picked from each plot and examined for worm damage.

scholarly journals Foliar Sprays to Control Insects on Potatoes, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 160-160
Author(s):  
John Speese
Keyword(s):  
Agricultural Research ◽  
Row Spacing ◽  
Eastern Shore ◽  
Bare Ground ◽  
Foliar Sprays ◽  
Extension Center

Abstract Potatoes were planted on 26 Mar at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of 4 rows 20 ft long with 3 ft between-row spacing and 6 ft of bare ground between plots Treatments were replicated 4 times in a RCB.

scholarly journals Use of Fipronil (Regent) and Imidacloprid (Admire 2F) at Planting to Control Insects in Potatoes, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 166-166
Author(s):  
John Speese
Keyword(s):  
Agricultural Research ◽  
The Other ◽  
Row Spacing ◽  
Life Stages ◽  
Eastern Shore ◽  
Bare Ground ◽  
Extension Center

Abstract Potatoes were planted on 27 March at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of 4 rows 25ft long, planted on a 3ft row spacing. Plots were separated from each other by 6ft of bare ground, and each treatment was replicated 4 times in a RCB design. Treatments were applied in furrow prior to planting using a hand-held shaker for the Regent 1.5G formulation and a single nozzle boom backpack sprayer for the other formulations. All CPB life stages on 10 randomly chosen stems/plot were counted weekly. Dates for which there were either significant differences or noticeable trends are recorded in the tables. Numbers of PLH nymphs on 10 randomly picked compound leaves/plot were sampled. Percent defoliation/plot was estimated on the indicated dates in the tables. On 12 July, the center two rows of each plot were harvested and graded to determine yields.

scholarly journals Use of Soil and Foliar Insecticides to Control Thrips and Leafhoppers in Snapbeans, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 86-87
Author(s):  
John Speese
Keyword(s):  
Direct Contact ◽  
Agricultural Research ◽  
Foliar Spray ◽  
Row Spacing ◽  
Eastern Shore ◽  
Extension Center

Abstract Snapbeans were planted on 18 May at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of 2 rows 25 ft long and planted on 3 ft row spacing. Plots were bordered on each side by an untreated guard row. Each treatment was replicated 4 times in a RCBD. Granular treatments were applied in furrow prior to planting using a hand-held shaker. DiSyston and Thimet granules were manually incorporated to avoid direct contact with the seeds and phytotoxicity. The Orthene foliar spray was applied on 9 June, after the formation of the first trifoliate leaves, with a three-nozzle boom backpack sprayer delivering 60 gal water/acre at 40 psi. To evaluate efficacy, 10 trifoliate leaves/plot were randomly picked on the dates indicated in the table, washed in soapy water, and filtered through a Buchner funnel. Thrips and PLH nymphs were then counted under a stereoscopic microscope.

scholarly journals Azadirachtin (Align) to Control CPB on Potatoes, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 126-126
Author(s):  
John Speese
Keyword(s):  
First Generation ◽  
Agricultural Research ◽  
Block Design ◽  
Evaluation Criteria ◽  
Row Spacing ◽  
Life Stages ◽  
Eastern Shore ◽  
Hollow Cone ◽  
Randomized Complete Block Design ◽  
Extension Center

Abstract Potatoes were planted on 11 April at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of two 25 ft rows on 3 ft row spacing, replicated four times in a randomized, complete block design. An untreated guard row separated each plot. Admire 2F was applied in furrow preplanting using a single hollow cone nozzle boom backpack sprayer. Foliar sprays were applied on the dates indicated in the table using a 3 hollow cone nozzle boom backpack sprayer delivering 60 gal water/acre at 40 psi. On 21 and 23 Jun, the entire test was sprayed out with Vydate L at 0.50 lb(AI)/acre and Furadan 4F at 1.00 lb (AI)/acre to control first generation CPB adults. Evaluation criteria and spray decisions were based on weekly counts of all CPB life stages present on 10 random stems/plot. Sprays were applied if the following thresholds were exceeded: 4 small larvae, 1.5 large larvae, or 0.5 adults/stem. Percent defoliation for each plot was rated on 16 Jun and both rows of each plot were harvested and graded on 20 Jul to determine yields.

Foliar Sprays to Control Lepidopterous Larvae on Cabbage, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 112-112
Author(s):  
John Speese
Keyword(s):  
Agricultural Research ◽  
Row Spacing ◽  
Eastern Shore ◽  
Foliar Sprays ◽  
Extension Center

Abstract Cabbage was transplanted on 21 Aug at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of a single 25-ft-long row with 3 ft between-row spacing, bordered on each side by an untreated guard row. Treatments were replicated 4 times in a RCB design.

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