the larval feeding preference and damage potential of helicoverpa armigera (hübner) on promising cotton genotypes/hybrid were studied during 2004 under laboratory and field conditions at ccs haryana agricultural university, hisar, haryana, india. third and fifth instar larvae were allowed to feed on different types of fruiting body (squares, flowers and young bolls) of various genotypes/hybrid ...

Experience is well known to affect sensory-guided behaviors in many herbivorous insects. Here, we investigated the effects of natural feeding experiences of Helicoverpa armigera larvae on subsequent preferences of larval approaching and feeding, as well as the effect of host-contacting experiences of mated females on subsequent ovipositional preference. The results show that the extent of exper...

BACKGROUND Given that, in most clinical circumstances, enteral nutrition (nasal gastric tube feeding) may not necessarily be superior to parenteral nutrition (IV feeding), consideration of patient preference should be included in decisions on the method of feeding. OBJECTIVES To evaluate patient preference for nasal gastric versus IV feeding. METHODS We administered a written questionnaire ...

Preference value means livestock preference to eat some plants relative to other plants or species. Accordingly, by studying the preference values, the range managers could determine the rangelands grazing capacity to achieve the optimum performance of livestock and to guarantee the stability of rangeland ecosystem. The objective of this study was to determine the preference value of perennial ...

The feeding preferences of individuals within a single species of marine consumer can differ because of variation in ontogeny, physiological state and environmental conditions; yet genetic variation can also play a central (largely undescribed) role. This study describes the nature of the genetic inheritance of feeding preference in the herbivorous amphipod Ampithoe longimana. Two populations k...

cabbage leaf miner scaptomyza flava (fallen) (l)iptera: drosophilidae) is a native and oligophagous leaf miner insect on cruciferous plants (brassicaceae). it occurs in many parts of the world and throughout khuzestan. the relationship between feeding and ovipositional preferences of insect, and host plant suitability on seven host plant species (cauliflower brassica oleracea var. botryds, ...

The flowers of different plant species have diverse scents with varied chemical compositions. Hence, every floral scent does not uniformly affect insect feeding preferences. The blowfly, Phormia regina, is a nectar feeder, and when a fly feeds on flower nectar, its olfactory organs, antennae, and maxillary palps are exposed to the scent. Generally, feeding preference is influenced by food flavo...

The results of the present experiments provide two lines of evidence consistent with the view that development of olfactory control of feeding-site selection in rats depends on experiences during ontogeny. First, normally reared pups ate at a feeding site at which either an anesthetized conspecific or conspecific excreta were present in preference to a clean site, whereas pups reared without co...

Limited biological information about Phyllophaga ephilida , a major sweet potato pest in Louisiana, is available. In 2001 and 2002, a study was conducted in the laboratory to investigate the feeding preference of adult Phyllophaga ephilida (Say) (Coleoptera: Scarabaeidae) for the foliage of eight woody plant species: water oak ( Quercus nigra L.), live oak ( Quercus virginiana Mill.), red maple...