A retrospective study was conducted in 1993 which quantified the effectsof overstoryshading on both spruce weevil, Pissodes strobi (Peck) damage, and leader growth oninterior white spruce, Picea g/auca(Moench) Voss x engelmannii (Parry ex Englem.).The study was undertaken inthe Prince George and Cariboo Forest Regionsof BritishColumbia where the weevil is causing...

BACKGROUND The cotton boll weevil (Anthonomus grandis) is a serious insect-pest in the Americas, particularly in Brazil. The use of chemical or biological insect control is not effective against the cotton boll weevil because of its endophytic life style. Therefore, the use of biotechnological tools to produce insect-resistant transgenic plants represents an important strategy to reduce the dam...

Because boll weevil, Anthonomus grandis Boh. develops partially protected inside cotton fruiting structures, once they become established in a field, they are difficult to control, even with nearly continuous insecticide spray. During two cotton-growing seasons in the Semiárido region of Pernambuco State, Brazil, we tested the use of kaolin sprays to disrupt plant colonization through visual cu...

In this paper we report on the large induction of volatile organic compounds (VOCs) from a single leaf of the mossy sorrel, Rumex confertus Willd. (Polygonaceae), by herbivory of the red dock weevil (Apion miniatum Germ., Coleoptera: Apionidae). VOC blends induced by the red dock weevil herbivory included 5 green leaf volatiles (GLVs) ((Z)-3-hexenal, (E)-2-hexenal, (Z)-3-hexenol, (E)-2-hexenol,...

It is a challenge to design and implement a wide-area distributed hash table (DHT) which provides a storage service with high reliability. Many existing systems use replication to reach the goal of reliability. However, maintaining availability and consistency of the replicas becomes a major hurdle. A reliable storage system needs to recover lost and inconsistent replicas, but any recovery stra...

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The Egyptian alfalfa weevil (alfalfa weevil in some areas) during most years is the most severe insect pest of alfalfa in California. These pests feed on alfalfa leaflets and stems, reducing hay yields. Several insecticides provide acceptable control of this pest. Historically, product choice has been driven by efficacy on the pest, cost, presence of other pests, i.e., aphids, days before harve...

This paper assesses the feasibility of the maize storage structures used in Kenya. Maize is the most important staple crop, but produced seasonally, and consumed continuously at farm level, hence the need for on-farm storage. However, heavy post harvest losses occur mainly during harvesting and storage stages and these are a cost to the farmer. A cost benefit analysis was employed to evaluate t...

Understanding the critical host plant factors that determine oviposition behavior and survival of boll weevil, Anthonomus grandis grandis Boheman, on cotton, Gossypium hirsutum L., is important for developing successful pest management strategies. However, published information is both conßicting and limited regarding how different cotton fruit sizes affect boll weevil oviposition choices and s...

Identifying and using native insect resistance genes is the core of integrated pest management. In this study, 10 experimental corn, Zea mays L., hybrids and 10 inbred lines were screened for resistance to major ear-feeding insects in the southeastern Coastal Plain region of the United States during 2004 and 2005. Ear-feeding insect damage was assessed at harvest by visual damage rating for the...