نتایج جستجو برای: lesser grain borer

تعداد نتایج: 98664  

2011
Kaushik Chakraborty

To determine the effect of inorganic N fertilizer on the incidence of yellow stem borer (YSB), Scirpophaga incertulas Walker and on grain yield, yield attributes and bio-chemical characters of local paddy cultivar Tulaipanji, a field experiment for three consecutive years (2007-2009) was carried out by randomized block design in pesticide untreated field. Treatments comprised of seven different...

Journal: :Journal of economic entomology 2007
Thomas D Brooks B Shaun Bushman W Paul Williams Micheal D McMullen Paul M Buckley

Leaf-feeding damage by first generation larvae of fall armyworm, Spodopter frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), and southwestern corn borer, Diatraea grandiosella Dyar (Lepidoptera: Crambidae), cause major economic losses each year in maize, Zea mays L. A previous study identified quantitative trait loci (QTL) contributing to reduced leaf-feeding damage by these insects in the mai...

Journal: :Environmental entomology 2009
Yigen Chen Therese M Poland

The emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), is an exotic woodborer first detected in 2002 in Michigan and Ontario and is threatening the ash resource in North America. We examined the effects of light exposure and girdling on green ash (Fraxinus pennsylvanica Marsh) volatile production, and effects of light exposure, girdling, and leaf age on emerald ash bore...

2004
Jeff Wyman Scott Chapman

The most damaging insect pests are those that attack the pods and result in either damage or contamination of the processed product. The European corn borer (ECB) and to a lesser extent the corn earworm (CEW) are the major pod feeding pests with damage primarily from 2 generation ECB and late flights of CEW in August/September. Damage from both species occurs from flowering to harvest, creating...

Journal: :Journal of economic entomology 2004
David P Kain Richard W Straub Arthur M Agnello

Surveys were conducted in the major apple growing regions of New York state to determine the incidence of borers infesting burrknots on clonal apple rootstocks. Dogwood borer, Synanthedon scitula (Harris), was generally prevalent throughout the state, but American plum borer, Euzophera semifuneralis (Walker), was limited to western New York apple orchards near infested stone fruit trees. Insect...

2015
Boghireddy Sailaja Desiraju Subrahmanyam Sarla Neelamraju Turaga Vishnukiran Yadavalli Venkateswara Rao Pujarula Vijayalakshmi Sitapati R. Voleti Vijai P. Bhadana Satendra K. Mangrauthia

In changing climatic conditions, heat stress caused by high temperature poses a serious threat to rice cultivation. A multiple organizational analysis at physiological, biochemical, and molecular levels is required to fully understand the impact of elevated temperature in rice. This study was aimed at deciphering the elevated temperature response in 11 popular and mega rice cultivars widely gro...

2015
T. A. Elewa

Rice (Oryza staiva L.) is one of the world's most important crops, providing a stable food for nearly half of the global population (FAO 2004). Almost 90% of the rice is growing and consumed in Asia. The striped stem borer (Chilo suppressalis Walker) is one of the most important rice pests in Asia. Rice stem borers cause damage to the crop at the larval stages. Larvae borer in to the plant stem...

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