scholarly journals Use of Fipronil 80Wg Foliar Sprays for Insect Control in Potatoes, Spring, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 136-136
Author(s):  
John Speese
Keyword(s):  
Block Design ◽  
Evaluation Criteria ◽  
Insect Control ◽  
Life Stages ◽  
Eastern Shore ◽  
Agricultural Experiment Station ◽  
Foliar Sprays ◽  
Randomized Complete Block Design ◽  
Compressed Gas ◽  
Agricultural Experiment

Abstract Potatoes were planted on 16 Apr at the Eastern Shore Agricultural Experiment Station, Painter, VA. Each plot consisted of four 25 ft. long rows, replicated 4 times in a randomized, complete block design. Sprays were applied beginning on 17 May through 23 Jun using a propane compressed gas back pack sprayer delivering 40 gal water/acre at 40 psi. A total of three Fipronil 80WG applications was made every two weeks, and Asana XL + PBO was applied weekly. Evaluation criteria consisted of counts of all CPB life stages present on 5 randomly chosen stems/plot 3 or 4, 7, and 14 days after each Fipronil 80WG application. Aphids and leafhoppers were sampled on 10 randomly picked leaves/plot on the dates indicated, and estimates were taken on hopper burn and defoliation. The plots were harvested and graded to determine yields.

scholarly journals Foliar Sprays for Insect Control in Tomatoes, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 154-154
Author(s):  
John Speese
Keyword(s):  
Block Design ◽  
Evaluation Criteria ◽  
Insect Control ◽  
Eastern Shore ◽  
Agricultural Experiment Station ◽  
Hollow Cone ◽  
Randomized Complete Block Design ◽  
Agricultural Experiment ◽  
Living Leaf ◽  
Marketable Fruit

Abstract Tomatoes were transplanted on 23 Jul at the Eastern Shore Agricultural Experiment Station, Painter, VA. Each plot consisted of a 25 ft. row, bordered on each side by an untreated guard row, and replicated 4 times in a randomized, complete block design. Spacing was 5 ft. between rows. Sprays were applied weekly beginning 20 Aug through 23 Sep using a 3 nozzle hollow cone boom backpack sprayer delivering 45 gal water/acre at 40 psi. Evaluation criteria consisted of counts of new or living leaf mines present on five marked plants/plot on the dates indicated in the table, and number of marketable fruit from the same five plants harvested on 8 and 22 Sep.

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).

scholarly journals Use of Neem-Based and Bacillus Thuringiensis Foliar Sprays to Control Colorado Potato Beetle on Potatoes, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 133-133
Author(s):  
John Speese
Keyword(s):  
Block Design ◽  
Potato Leafhopper ◽  
Plant Spacing ◽  
Eastern Shore ◽  
Agricultural Experiment Station ◽  
Hollow Cone ◽  
Potato Beetle ◽  
Randomized Complete Block Design ◽  
Compressed Gas ◽  
Agricultural Experiment

Abstract Potatoes were planted on 15 Apr at the Eastern Shore Agricultural Experiment Station, Painter, VA. Each plot consisted of a 25 ft row bordered on each side by an untreated guard row, replicated 4 times in a randomized complete block design. Plant spacing was 10 inches between plants with 36 inches between rows. Sprays to control CPB were applied on the dates indicated in the table. On 15 and 22 Jun, the Novodor treatment was sprayed with Asana XL (0.04 lb AI) due to the presence of CPB large larvae and Fl adults. From 15 Jun on, Cygon 400 (0.25 lb AI) was added to the ATI 720 treatments to control potato leafhopper (Empoasca fabae). Sprays were applied with a propane compressed gas backpack sprayer using a 3 nozzle hollow cone (D4—5) boom and delivering 60 gal water/acre at 40 psi.

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.

scholarly journals Head Cabbage, Microbial Control of Cutworm, Webworm, Cluster Caterpillar and Gardenlooper, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 66-66
Author(s):  
R. Muniappan ◽  
I.U. Silva-Krott
Keyword(s):  
Block Design ◽  
Microbial Control ◽  
Bare Soil ◽  
Agricultural Experiment Station ◽  
Experiment Station ◽  
Randomized Complete Block Design ◽  
Agricultural Experiment ◽  
The University ◽  
Head Cabbage ◽  
University Of Guam

Abstract The experiment was conducted at the Agricultural Experiment Station of the University of Guam, at the Inarajan site. The experiment was a randomized complete block design with four treatments and four replications. Each treatment consisted of four rows of head cabbage with eight plants on each row. Replications were separated by 60 cm of bare soil. Cabbage seedlings were planted 2 Mar 1993

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 Insecticides for Insect Control in Field Corn, Painter, Va 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 212-212
Author(s):  
John Speese
Keyword(s):  
Insect Control ◽  
Plant Spacing ◽  
Eastern Shore ◽  
Agricultural Experiment Station ◽  
Experiment Station ◽  
Field Corn ◽  
No Till ◽  
Agricultural Experiment ◽  
Soil Insecticides

Abstract Field corn was planted no-till on 7 May at the Eastern Shore Agricultural Experiment Station, Painter, VA. Treatments were applied pre-planting in the manner indicated in the table. Each plot consisted of four 25 ft rows bordered on each side by an untreated guard row. Plant spacing was 30 inches between rows with 9-10 inches between plants. Stand counts averaged 36 plants per 25 ft row on 28 May. The number of damaged whorls was counted in the 2 center rows (50 ft total) of each plot on 4 Jun and the number of damaged (stunted or twisted) stalks was counted in the 2 center rows (50 ft total) of each plot on 23 Jun.

scholarly journals Comparison of Cyromazine (Trigard) and Bacillus Thuringiensis (Novodor) Foliar Sprays for CPB Control on Potatoes, Painter, VA

1995 ◽  
Vol 20 (1) ◽  
pp. 128-128
Author(s):  
John Speese
Keyword(s):  
First Generation ◽  
Agricultural Research ◽  
Block Design ◽  
Evaluation Criteria ◽  
Row Spacing ◽  
Life Stages ◽  
Hollow Cone ◽  
Egg Hatch ◽  
Randomized Complete Block Design ◽  
Extension Center

Abstract Potatoes were planted on 8 April at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of six 30 ft long rows on 3 ft row spacing, replicated 4 times in a randomized, complete block design. Sprays were applied using either a tractor-mounted sprayer or a 3-hollow cone nozzle boom backpack sprayer if the ground was too wet for the tractor. Sprays were applied in 40 gal/acre water. Spray dates are indicated in the tables. The entire test was sprayed out on 20 Jun with Vydate L at 0.5 lb (AI)/acre and Furadan 4F at 1.0 lb (AI)/acre to control first generation CPB adults. Evaluation criteria consisted of weekly counts of all CPB life stages present on 10 randomly chosen plants/plot, and the first sprays were applied at peak CPB egg hatch. Percent defoliation for each plot was rated on 20 Jun, and the center two rows of each plot were harvested and graded on 1 Jul to determine yields.

scholarly journals Comparison of Various Classes of Foliar Insecticides for Worm Control in Fall Cabbage, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 79-79
Author(s):  
John Speese
Keyword(s):  
Agricultural Research ◽  
Block Design ◽  
Evaluation Criteria ◽  
Eastern Shore ◽  
Hollow Cone ◽  
Plot Sampling ◽  
Randomized Complete Block Design ◽  
Worm Control ◽  
Extension Center

Abstract Cabbage was transplanted in two fields on 10 Aug at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. In both fields, each plot consisted of a single 25 ft × 3 ft row, replicated four times in a randomized, complete block design. Plots were separated by untreated guard rows. Sprays were applied on the dates indicated in the tables using a 3 hollow cone nozzle boom backpack sprayer delivering 60 gal water/acre at 40 psi. Evaluation criteria consisted of counts of all worm species present and final market ratings on 5 randomly chosen plants/plot. Sampling dates for each field are indicated in the tables. Market ratings were estimated according to Greene et al. in J. Econ. Entomol. 62(4): 798-800. A rating greater than 3 is considered unmarketable.

Foliar Sprays to Control Insects in Wheat, Painter, Va, 1993

1995 ◽  
Vol 20 (1) ◽  
pp. 265-265
Author(s):  
John Speese III
Keyword(s):  
Agricultural Research ◽  
Flag Leaf ◽  
Block Design ◽  
Eastern Shore ◽  
Treatment Threshold ◽  
Flag Leaves ◽  
Foliar Sprays ◽  
Randomized Complete Block Design ◽  
Extension Center

Abstract Wheat was planted on 13 Nov 1993 at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot was 25 ft long by 5 ft wide and replicated 4 times in a randomized, complete block design. Sprays were applied on 2 May using a 3-nozzle flat fan boom backpack sprayer delivering 20 gal water/acre at 40 psi, when CLB pressure was at or near the treatment threshold of 1 larva/flag leaf in most plots. Numbers of CLB larvae/50 flag leaves and numbers of EGA/50 ears were counted in each plot on the dates indicated in the table. Percent defoliation was rated on 12 May on 25 randomly chosen flag leaves/plot, and the plots were harvested on 7 Jul.

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