نتایج جستجو برای: stem borers

تعداد نتایج: 277319  

2015
Alfonce Leonard Gration M. Rwegasira

Species diversity, abundance, and dispersion of rice stem borers in framer's fields were studied in four major rice growing areas of Kahama District. Stem borer larvae were extracted from the damaged tillers in 16 quadrants established in each field. Adult Moths were trapped by light traps and collected in vials for identification. Results indicated the presence of Chilo partellus, Maliarpha se...

Journal: :Annual review of entomology 2002
Rami Kfir W A Overholt Z R Khan A Polaszek

Cereals (maize, sorghum, millet, rice) are extremely important crops grown in Africa for human consumption. Of the various insect pests attacking cereal crops in Africa, lepidopteran stem borers are by far the most injurious. All 21 economically important stem borers of cultivated grasses in Africa are indigenous except Chilo partellus, which invaded the continent from India, and C. saccharipha...

2015
Esther Obi Oben Nelson Neba Ntonifor Sevilor Kekeunou Martin Nkwa Abbeytakor

BACKGROUND Agriculture is a major contributor to the Gross Domestic Product (GDP) of Cameroon, The South West region of Cameroon is known for its potential in the production of major agricultural commodities, but farmers' yields from various speculations are low, dwindling over time due to some major constraints. Maize production is hampered by adverse socio-economic factors, several pests and ...

2014
Laurel J. Haavik Tom W. Coleman Mary Louise Flint Robert C. Venette Steven J. Seybold

We investigated within-tree population density of a new invasive species in southern California, the goldspotted oak borer, Agrilus auroguttatus Schaeffer (Coleoptera: Buprestidae), with respect to host species and the community of other borers present. We measured emergence hole densities of A. auroguttatus and other borers on the lower stem (bole) of naïve oaks at 18 sites in southern Califor...

Journal: :Bulletin of the Entomological Society of America 1970

Journal: :Journal of invertebrate pathology 2010
Yulin Gao Yang Hu Qiang Fu Jie Zhang Brenda Oppert Fengxiang Lai Yufa Peng Zhitao Zhang

Transgenic rice to control stem borer damage is under development in China. To assess the potential of Bacillus thuringiensis (Bt) transgenes in stem borer control, the toxicity of five Bt protoxins (Cry1Aa, Cry1Ab, Cry1Ac, Cry1Ba and Cry1Ca) against two rice stem borers, Sesamia inferens (pink stem borer) and Chilo suppressalis (striped stem borer), was evaluated in the laboratory by feeding n...

2006
Fernando E. Vega Francisco Posada Francisco Infante

Coffee is one of the most important agricultural commodities in the world and is grown in more than 50 countries throughout the tropics. Several insect pests have been reported in coffee, the most important being the coffee leaf miner, the coffee berry borer, and the coffee stem borers. The basic biology of these insects is discussed.

Journal: :International journal of life science and pharma research 2022

The irrational use of chemical pesticides has caused serious health hazards and environmental problems in developing countries including India. Hence, the Present investigation was carried out to formulate an effective Herbal pesticide against three major pests rice like stem borers, leafhoppers plant hoppers find solution for control pest population by traditional agricultural practices. Oil A...

Journal: :Sustainability in Food and Agriculture 2020

2011
Duna Madu Mailafiya Bruno Pierre Le Ru Eunice Waitherero Kairu Stéphane Dupas Paul-André Calatayud

Plant infestation, stem borer density, parasitism, and parasitoid abundance were assessed during two years in two host plants, Zea mays (L.) (Cyperales: Poaceae) and Sorghum bicolor (L.) (Cyperales: Poaceae), in cultivated habitats. The four major host plants (Cyperus spp., Panicum spp., Pennisetum spp., and Sorghum spp.) found in natural habitats were also assessed, and both the cultivated and...

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