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 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 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 Soil and Foliar Insecticides to Control Insects in Sweet Potatoes, Painter, VA, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 133-133
Author(s):  
John Speese
Keyword(s):  
Agricultural Research ◽  
Block Design ◽  
Light Trap ◽  
Corn Rootworm ◽  
Sweet Potatoes ◽  
Click Beetles ◽  
Foliar Sprays ◽  
Southern Corn Rootworm ◽  
Randomized Complete Block Design ◽  
Extension Center

Abstract Sweet potatoes were planted on 17 Jun at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of 3 rows 20 ft long on 3 ft spacing, replicated six times in a randomized, complete block design. A single untreated guard row separated each plot. Soil treatments were applied immediately prior to planting in the manner indicated in the table and incorporated. Lorsban 4E and Fipronil 80WG were applied using a 6 flat fan nozzle boom backpack sprayer delivering 20 gal water/acre at 40 psi. The gallonage was increased to 40 gal/acre for the Sevin foliar sprays. The granular treatments were applied using a hand-held shaker. Application dates are indicated in the table. Foliar sprays were started when the first click beetles (wireworm adults) appeared in the black light trap at Painter, VA. The threshold sprays were terminated after the wireworm flights had stopped, and the scheduled sprays were applied weekly through 23 Aug. The center row of each plot was harvested on 12 Oct and 25 market sized roots were randomly chosen, washed, and then examined for insect damage. Damage from wireworms, Southern corn rootworm (Diabrotica) and Systena flea beetles is similar and was, therefore, counted and analyzed together as a complex (WDS 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.

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.

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 Comparison of Pymetrozine (Cga 215944) and Imidacloprid (Provado) Foliar Sprays to Control Aphids in Tomatoes, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 185-185
Author(s):  
John Speese
Keyword(s):  
Agricultural Research ◽  
Test Field ◽  
Single Application ◽  
Eastern Shore ◽  
Hollow Cone ◽  
Potato Aphid ◽  
Single Row ◽  
Foliar Sprays ◽  
Extension Center ◽  
Aphid Populations

Abstract Tomatoes were transplanted on 9 Aug at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of a single row 20 ft X 5 ft, bordered on each side by an untreated guard row. On 1 Oct, heavy potato aphid populations developed in the test field. A pre-count of live aphids on 5 randomly picked compound leaves/plot was taken on this date and followed by a single application of all treatments. Treatments were applied with a backpack sprayer equipped with a 3 hollow cone nozzle boom and delivering 46 gal water/acre at 40 psi. To evaluate efficacy, the plots were sampled as previously described for the pre-count on the dates indicated in the table.

scholarly journals Foliar Sprays to Control Insects in Wheat, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 318-318
Author(s):  
John Speese
Keyword(s):  
Agricultural Research ◽  
Evaluation Criteria ◽  
Aphid Species ◽  
Eastern Shore ◽  
Bare Ground ◽  
Foliar Sprays ◽  
Compressed Gas ◽  
Extension Center ◽  
Flat Fan Nozzle

Abstract Wheat was planted on 2 Nov, 1994, at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Plots were 25 ft long by 5 ft wide, with 7 inch spacing between rows. Each plot was separated from each other by 3 ft of bare ground and replicated 4 times in a RCB design. Insect pressure from all species was low this year. Treatments were applied on 5 May using a propane compressed gas backpack sprayer with a 3 flat fan nozzle boom which delivered 20 gal water/acre at 40 psi. Evaluation criteria consisted of counts of insects present on 6 ft of row. EGA was the dominant aphid species with low numbers of BCOA present. Numbers of both species were analyzed together as a complex.

scholarly journals Soil and Foliar Treatments to Control Insects in Sweet Potatoes, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 146-146
Author(s):  
John Speese
Keyword(s):  
Block Design ◽  
Light Trap ◽  
Eastern Shore ◽  
Agricultural Experiment Station ◽  
Sweet Potatoes ◽  
Foliar Sprays ◽  
Corn Rootworms ◽  
Randomized Complete Block Design ◽  
Agricultural Experiment ◽  
Trap Catches

Abstract Sweet potatoes were planted on 22 Jun at the Eastern Shore Agricultural Experiment Station, Painter, VA. Each plot consisted of 3 rows 20 ft. long with 3 ft. spacing between rows. Plots were separated by an untreated guard row and replicated 6 times in a randomized, complete block design. Mocap treatments were applied and incorporated on 10 Jun to avoid phytotoxicity. Lorsban and Temik were applied and incorporated immediately prior to planting. Mocap and Lorsban were broadcast using a 6 flat fan nozzle boom backpack sprayer delivering 20 gal water/acre. Temik was applied in a 12 inch band using a hand-held shaker. Sevin foliar sprays were started on 14 Jul, after the first clickbeetles (wireworm adults) were caught in the black light trap at Painter. Clickbeetle light trap catches were used as a basis for determining dates for the Sevin threshold sprays. The Sevin schedule sprays were applied weekly from 14 Jul through 30 Aug. The Sevin threshold sprays were applied on 14 and 27 Jul, and 9 and 30 Aug. Foliar sprays were applied in 40 gal water/acre using the same sprayer described above. On 18 Oct, the center row of each plot was harvested and 25 market-sized roots were randomly selected to determine insect damage. Damage from wireworms, southern corn rootworms (Diabrotica) and Systena flea beetles is very similar and thus recorded and analyzed as a complex (WDS damage).

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