Results 81 to 90 of about 11,920 (215)

Aspectos biológicos de adultos de um parasitóide do bicudo do algodoeiro Biological aspects of a parasitoid of the cotton boll weevil

open access: yesScientia Agricola, 1999
Bracon sp. é um importante agente de controle biológico de Anthonomus grandis (Boheman). Estudaram-se em laboratório, aspectos biológicos de Bracon sp., utilizando-se como hospedeiro larva do bicudo do algodoeiro, a temperatura de 26 ± 2oC, 70 ± 5% UR e ...
Lúcia Helena Avelino Araújo   +2 more
doaj   +1 more source

Seasonal Changes in Chemical Composition of Eurasion Watermilfoil (Myriophyllum spicatum L.) and Water Temperature at Two Sites in northern California: implications for Herbivory [PDF]

open access: yes, 1999
We compared seasonal changes in Eurasian watermilfoil (Myriophyllum spicatum L.) characteristics and water temperature for a shallow poind in Davis, CA, and the Truckee River, near Tahoe City, CA. Tissue C and N were 15% lower in plants from the Truckee
Ksander, Gregory G., Spencer, David F.
core  

Mechanical damage in cotton buds caused by the boll weevil

open access: yesPesquisa Agropecuária Brasileira, 2003
The boll weevil (Anthonomus grandis Boheman) causes high levels of bud abscission in cotton plants due to feeding or oviposition punctures. It has been reported that abscission is mainly due to enzymes present in the insect's saliva, but mechanical ...
Santos Roseane Cavalcanti   +3 more
doaj  

ECONOMIC RETURNS TO THE BOLL WEEVIL ERADICATION PROGRAM [PDF]

open access: yes
The economic viability of the Boll Weevil Eradication program in Alabama, Florida, and Georgia is assessed based on a five-year survey of producers. Results indicate the program increases yield 100 pounds per acre. This implies a 19 percent internal rate
Ahouissoussi, Nicolas B.C.   +2 more
core   +1 more source

MODELING FARM AND OFF-FARM ECONOMIC LINKAGES TO ANALYZE THE IMPACTS OF AN AREA-WIDE INSECT MANAGEMENT PROGRAM ON A REGIONAL ECONOMY [PDF]

open access: yes
This study evaluated the impacts of the boll weevil eradication program at the farm level and on the west Tennessee region. Budgets, an acreage response model, and an input-output model were used to evaluate direct and indirect program impacts.
English, Burton C.   +2 more
core   +1 more source

AI-Driven Computer Vision Detection of Cotton in Corn Fields Using UAS Remote Sensing Data and Spot-Spray Application

open access: yesRemote Sensing
To effectively combat the re-infestation of boll weevils (Anthonomus grandis L.) in cotton fields, it is necessary to address the detection of volunteer cotton (VC) plants (Gossypium hirsutum L.) in rotation crops such as corn (Zea mays L.) and sorghum ...
Pappu Kumar Yadav   +8 more
doaj   +1 more source

ECONOMIC, ENVIRONMENTAL AND ENERGY USE IMPLICATIONS OF SHORT-SEASON COTTON PRODUCTION: TEXAS LOWER RIO GRANDE VALLEY [PDF]

open access: yes
Crop Production/Industries,
Casey, James E.   +5 more
core   +1 more source

A PRINCIPAL-AGENT MODEL FOR REGIONAL PEST CONTROL ADOPTION [PDF]

open access: yes
Investigating the underlying producer characteristics associated with regional pest control adoption revealed an interesting proposition. Early adopting producers of firm-specific techniques with characteristics including higher education, more ...
Ahouissoussi, Nicolas B.C.
core   +1 more source

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