Host plant recognition by the root feeding clover weevil, Sitona lepidus (Coleoptera: Curculionidae)
نویسندگان
چکیده
منابع مشابه
Host 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...
متن کاملEffects of carbon dioxide on the searching behaviour of the root-feeding clover weevil Sitona lepidus (Coleoptera: Curculionidae).
The respiratory emission of CO2 from roots is frequently proposed as an attractant that allows soil-dwelling insects to locate host plant roots, but this role has recently become less certain. CO2 is emitted from many sources other than roots, so does not necessarily indicate the presence of host plants, and because of the high density of roots in the upper soil layers, spatial gradients may no...
متن کاملDependence of Sitona lepidus (Coleoptera: Curculionidae) larvae on abundance of white clover Rhizobium nodules.
Sitona lepidus Gyllenhal (Coleoptera: Curculionidae) was first recognized in New Zealand pastures in the Waikato in March 1996 (Barratt et al., 1996). In Europe and North America, the species is considered to be a significant pest of clovers (Barratt et al., 1996 and references therein). However, white clover Trifolium repens L. (Fabaceae) is the key to profitability in New Zealand‘s pastoral i...
متن کاملResponse of cranberry weevil (Coleoptera: Curculionidae) to host plant volatiles.
The oligophagous cranberry weevil, Anthonomus musculus Say, causes economic losses to blueberry growers in New Jersey because females deposit eggs into developing flower buds and subsequent larval feeding damages buds, which fail to produce fruit. A cost-effective and reliable method is needed for monitoring this pest to correctly time insecticide applications. We studied the behavioral and ant...
متن کاملSize-dependent feeding and reproduction by boll weevil (Coleoptera: Curculionidae).
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 کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bulletin of Entomological Research
سال: 2004
ISSN: 0007-4853,1475-2670
DOI: 10.1079/ber2004317