Spray Droplet Size in the Control of Spruce Budworm, Boll Weevil, Bollworm, and Cabbage Looper1

Himel, Chester M.; Moore, A.

doi:10.1093/jee/62.4.916

Cited by 40 publications

(21 citation statements)

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“…The best obtained result was 15 L/Fed. As spray volume, 156.9 µm and 155.5droplets/cm², these results agreed with (Himel et al, 1969) in the optimum droplet size to control cotton leaf worm in the cotton fields by ground equipment. Tribon and Selecron revealed the best bio-efficiency results followed with Patron with the two tested sprayers (Cifarilli) motor sprayer (20 L./fed.)…”

Section: -Comparison On Basis Of Controlling Index and Potency Levelssupporting

confidence: 78%

EVALUATION OF TWO GROUND SPRAYING EQUIPMENTS FOR CONTROLLING SPINY BOLLWORM Earias insulana (BOISD.) IN COTTON FIELD

Dar

Salem

Moustafa

et al. 2015

Journal of Plant Protection and Pathology

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Three insecticides; Selecron, Trebon and Patron were sprayed using Knapsack motor sprayer Cifarilli (20 L./Fed.) and Economy Micron ULVA (15 L./Fed.) in cotton field infested with the cotton spiny bollworm Earias insulana (Boisd.) larvae during 2014 cotton season at Qaha district, Qalyoubia Governorate. The spectrum of droplets size ranging between 140-169 microns (VMD) with sufficient number ranging from 14-276 droplets/cm². The productivity of motor sprayer Cifarilli was 12 Fed./day. It was the best equipment, but the lowest productivity was 3.04 Fed./day by using Economy Micron ULVA. Results indicated that Trebon and Selecron insecticides were almost behave to be equitoxic effective in controlling larvae of cotton bollworm on cotton plants than the Patron insecticide with Economy Micron ULVA (15 L./Fed.) followed by Knapsack motor Cifarilli sprayer (20L./Fed.). The efficiency of the tested insecticides could be descendingly arranged as follows: Trebon, Selecron and Patron. The corresponding general reduction rates were 91.١٥, 55.99 and 92.51% in case of using Micron ULVA equipment and 91.13, 55.19 and 92.20% in case of using Knapsack motor Cifarilli sprayer, respectively. Data showed that, low volume spraying may be recommended because of reducing the time lost in the process filling the machines of reducing the time lost of the spray solution on the plant leaves and saving the lost spray via run off on the ground.

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Section: -Comparison On Basis Of Controlling Index and Potency Levelssupporting

confidence: 78%

EVALUATION OF TWO GROUND SPRAYING EQUIPMENTS FOR CONTROLLING SPINY BOLLWORM Earias insulana (BOISD.) IN COTTON FIELD

Dar

Salem

Moustafa

et al. 2015

Journal of Plant Protection and Pathology

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“…O tamanho de gota ótimo é aquele que promove o máximo de deposição de produto no alvo, com mínimo de contaminação do meio ambiente (8,9). A não utilização de gotas de tamanhos adequados tem proporcionado perdas e, em alguns casos, mais de um terço dos produtos aplicados podem estar sendo perdidos para o solo por meio da endoderiva.…”

Section: Tabela 2 -Concentração De Rodamina (Mg/l) Encontrada Nas Trêunclassified

Avaliação De Bicos De Pulverização De Agrotóxicos Na Cultura Do Algodão

Scramin¹,

Chaim

Pessoa³

et al. 2002

PES

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Avaliou-se a eficiência de três tipos de bico de pulverizador na aplicação de agrotóxicos em algodão, mediante experimento de campo na estação da Dow AgroSciences. Analisou-se o comportamento dos bicos (TXVK-8, TXVK-4 e TJ-60 8002) com relação à deposição, tamanho e densidade das gotas nas três partes da planta (apical, mediana e basal). Não foi verificada diferença estatística entre os mesmos com relação à deposição. Entretanto, a deposição média dos três bicos foi significativamente decrescente da região apical (45%) para mediana (18%) e desta para a basal (7%). O bico TJ-60 8002 VS produziu gotas relativamente grandes, resultando em baixa densidade de deposição e, portanto, não seria recomendado para controlar pragas que apresentem baixa mobilidade sobre as plantas.PALAVRAS-CHAVE: TRAÇADOR; RODAMINA B; AGROTÓXICOS-DEPOSIÇÃO; PULVERIZADOR. INTRODUÇÃOVárias pulverizações de agrotóxicos são necessárias durante todo o ciclo da cultura do algodão para controlar seus problemas fitossanitários. A maior dificuldade no manejo Spodptera frugiperda deve-se provavelmente, à sua localização no algodoeiro, quase sempre nas regiões mediana e basal das plantas. É provável que os produtos aplicados não estejam atingindo as regiões da planta habitadas por esta praga em quantidade

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“…biological surfaces have been determined in previous trials Himel and Moore (1969). observed a mean of 77 fluorescent particles (101,495/1,324) on a spruce budworm Barry et al (1977).…”

mentioning

confidence: 99%

Assessment of aerial spray deposits in a spruce forest using in-flight microencapsulation technique

Himel

Sundaram²,

Sundaram³

et al. 1987

J. of Env. Sc. & Hlth., Part B

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Spray drops were counted and sized on Kromekote ® cards at ground level, and on spruce foliage at canopy level, after aerial application of a formulation containing a microencapsulation medium, over a spruce forest in Ontario. The majority of drops (70%) on foliage was 20 -75 μm range. A coarse drop size spectrum was observed on cards with a maximum diameter (D max ) of 380 μm, and with 85% of the drops < 130 μm in diameter. Foliar drop analysis, on the other hand, indicated a finer spectrum with a D max of 150 μm, and with 85% of 195 196 HIMEL ET AL. the drops < 75 urn. These results were explained on the basis of formulation ingredients, atomizer setting, weather factors, and drop retention on target surfaces. The assessment of spray deposits on glass plates at ground level indicated that about 16% of the applied spray volume reached the forest floor, a value which is comparable to those obtained in previous forestry applications using the ultra-low-volume (ULV) technique.

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Spray Droplet Size in the Control of Spruce Budworm, Boll Weevil, Bollworm, and Cabbage Looper1

Cited by 40 publications

References 0 publications

EVALUATION OF TWO GROUND SPRAYING EQUIPMENTS FOR CONTROLLING SPINY BOLLWORM Earias insulana (BOISD.) IN COTTON FIELD

EVALUATION OF TWO GROUND SPRAYING EQUIPMENTS FOR CONTROLLING SPINY BOLLWORM Earias insulana (BOISD.) IN COTTON FIELD

Avaliação De Bicos De Pulverização De Agrotóxicos Na Cultura Do Algodão

Assessment of aerial spray deposits in a spruce forest using in-flight microencapsulation technique

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