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 ...

Freeze dried powdered leaves of Cymbopogum citratus (DC) Stapf, Cinnamomum camphor a (L.) Nee & Eberm Ipomoea mauritiana Jacq. famarandus indicus L., Lantana camara L., Myroxylon balsumum (L.) Harm, Citrus aurantium L. and vitex altisima L. were tested against Callosobruchus maculatus under nochoice and choice situations. Under no-choice situation, V. altisima at the rate of 5.0% w/w was highly...

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 ...

Pulse beetle, Callosobruchus chinensis is one of the major stored pests pulses. There were various factors that influence ovipositional behaviour C. chinensis. The preference host specificity for oviposition by female pest very important to lay maximum number eggs and also survival a species. Bigger size, smooth surface, deep coat coloured seeds are most suitable oviposition. combination temper...

Plant resistance is a promising control method for the two most damaging insect pests of maize, Zea mays L.: the European corn borer, Ostrinia nubilalis (Hübner), and the western corn rootworm, Diabrotica virgifera virgifera LeConte. Fifteen experimental lines of maize, derived from a backcross breeding program designed to introgress resistance to European corn borer from Peruvian maize into tw...

Pollutants rarely occur alone in the natural environment, and few studies have focused on the potential interactions between metals or metalloids. In this study an aquatic insect, the southern house mosquito (Culex quinquefasciatus: Diptera), was used to test the individual and joint effects of dissolved sodium selenate (Se) and methyl mercury chloride (MeHg). We conducted ovipositional prefere...

BACKGROUND Anopheles gambiae s.s. Giles is a major malaria vector in Sub-Saharan Africa. Studies of the basic biology of this mosquito, including oviposition, provide a background for assessing which attributes might be exploited for suppressing A. gambiae populations. Here, we report on when during the diel cycle A. gambiae individuals deposit eggs as compared to the ovipositional patterns of ...