Alfalfa Consumption by Adult Clover Leaf Weevil (Coleoptera: Curculionidae) and Development of Injury Equivalents for Stubble Defoliators
نویسندگان
چکیده
منابع مشابه
Degree-day requirements for alfalfa weevil (Coleoptera: Curculionidae) development in eastern Nebraska.
The alfalfa weevil, Hypera postica (Gyllenhal), is a serious, yet sporadic defoliator of alfalfa, Medicago sativa L., in Nebraska. A 2-yr study was conducted in 2005 and 2006 to test for variation in degree-day requirements by location in eastern Nebraska. Sampling took place along a latitudinal gradient in three regions of eastern Nebraska. Three fields were sampled in each region during the 2...
متن کاملHost plant recognition by the root feeding clover weevil, Sitona lepidus (Coleoptera: Curculionidae).
This study investigated the ability of neonatal larvae of the root-feeding weevil, Sitona lepidus Gyllenhal, to locate white clover Trifolium repens L. (Fabaceae) roots growing in soil and to distinguish them from the roots of other species of clover and a co-occurring grass species. Choice experiments used a combination of invasive techniques and the novel technique of high resolution X-ray mi...
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The considerable variation in adult size of the boll weevil, Anthonomus grandis grandis Boheman, has been well documented, but the influences of adult size on reproductive rate are not known. We examined the relationship between the size of boll weevils and their feeding and oviposition. Weevils weighed to the nearest milligram were grouped into five categories based on pupal weight: < or =5, 6...
متن کاملDevelopmental differences of local populations of alfalfa weevil (Hypera postica) (Coleoptera: Curculionidae)
* Correspondence: [email protected]
متن کاملOrganic Treatments for Control of Pepper Weevil (coleoptera: Curculionidae)
The pepper weevil, Anthonomus eugenii Cano (Coleoptera: Curculionidae) is a major pest of pepper (Capsicum spp.; Solanales: Solanaceae) in the southern United States, Mexico, Central America and the Caribbean. Feeding and oviposition cause flower and fruit abscission and internal fruit damage resulting in serious yield losses. Females lay eggs in flower buds and small fruits, shielding larvae f...
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ژورنال
عنوان ژورنال: Journal of Economic Entomology
سال: 1995
ISSN: 1938-291X,0022-0493
DOI: 10.1093/jee/88.5.1441