نتایج جستجو برای: pesticide sprays
تعداد نتایج: 15817 فیلتر نتایج به سال:
Space sprays for the control of adult mosquito populations are widely used by mosquito control groups throughout the world both for the pest and vector species. In the South-East Asia and Western Pacific regions, adulticiding is especially used to control vectors during epidemic outbreaks of mosquito-borne arboviruses such as dengue and Japanese encephalitis. Space sprays may be applied as ther...
The efficacy of oxamyl in controlling Heterodera schachtii on cabbage was determined by applying various contbinations of soil drenches at 6.7 kg (a.i.)/ha and foliar sprays at 0.04 kg (a.i.)/100 liters of water to cabbage seedlings. Pretransplant drenches provided some control of H. schachtii over a 13-week period. A single foliar spray of oxamyl 1 week before transplanting apparently prevente...
The olive fruit fly, Bactrocera oleae (Rossi) (Diptera: Tephritidae), is the most damaging pest of crop in main growing areas. control this based on insecticides, but more sustainable strategies are needed to reduce negative impacts such as pesticide residues, development insecticide resistance or effects non-target organisms. In a three-year field study, effectiveness preventive kaolin and cop...
This study compared an integrated pest management (IPM) program with conventional, calendar-based pest control in nine North Carolina elementary schools. Both programs primarily targeted the German cockroach, Blattella germanica (L.). The IPM program relied heavily on monitoring and baiting, whereas the conventional approach used baseboard and crack-and-crevice sprays of insecticides. Within th...
The Papilio demoleus is a key pest of citrus orchards found throughout the year. Their infestation causes defoliation, retards growth, and yields reduction. five insecticides namely; Emamectin Benzoate 1.9 EC, Belt 480g/L SC (Flubendiamide), Helmet 40 EC (Chlorpyrifos), Coragen (Chlorantraniliprole 18.5% SC), Regent 5% (Fipronil) were tested on C. limon orchard leaves against larvae population ...
Action threshold-based insecticide spray regimens were evaluated for control of tomato fruitworm (Helicoverpa zea [Boddie]) in freshmarket tomatoes in eastern Virginia in 1998 and 1999. The initial foliar-applied insecticide spray was made based on the presence of X1 H. zea egg on either X2%, X10% or X20% of plants sampled, while subsequent sprays were made on either a weekly basis or only if X...
A field experiment was conducted during Rabi season of 2012-13 at Regional Agricultural Research Station, Lam, Guntur, with an aim to find out the effect of foliar nutrition on water potential, photosynthetic rate, dry matter production and yield of mung bean under receding soil moisture conditions in split plot design with irrigation and no irrigation as main treatments and foliar sprays as su...
Pesticide Action Network, United Farmworkers of America, and California Rural Legal Assistance Foundation analyzed California government data on agricultural poisonings and enforcement of worker safety standards. Nearly 500 pesticide poisonings were reported for California farmworkers every year from 1997 to 2000. The actual number of pesticide-related illnesses is unknown, since many poisoning...
The detailed analysis of the fuel sprays has been well recognized as an important step for optimizing the operation of internal-combustion engines to improve efficiency and reduce emissions. However, the structure and dynamics of highly transient fuel sprays have never been visualized or reconstructed in three dimensions (3D) previously due to numerous technical difficulties. By using an ultraf...
The braconid wasp, Fopius arisanus (Sonan), a biological control agent for Mediterranean fruit fly, Ceratitis capitata (Wiedemann), was studied in coffee, Coffea arabica L. Fopius arisanus, comprised 79.3% of the total parasitoids (7,014) recovered from fruits collected at three small coffee farms. Data from seasonal host/parasitoid studies at a large coffee plantation also suggested that the m...
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