Seasonal abundance of the mirids, Lygus lucorum and Adelphocoris spp. (Hemiptera: Miridae) on Bt cotton in northern China

Wu, Kongming; Li, W; Feng, Hongqiang; Guo, Yong

doi:10.1016/s0261-2194(02)00080-7

Cited by 132 publications

(96 citation statements)

References 5 publications

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“…Evidence from both China and the USA indicates that lygus bugs are more numerous in Bt cotton than in non-Bt cotton (Li et al 2003;Welman and Cote 2004). Wu et al (2002) go as far as to say that L. lucorum has become a key pest in transgenic cotton fields in northern China. Another study showed that in addition to L. lucorum, populations of Aphis gossypii and Thrips tabaci were elevated in unsprayed Bt cotton compared to sprayed non-Bt cotton (Sun et al 2002).…”

Section: Pest Control Spectrum Of Bt Cottonsmentioning

confidence: 99%

Is there a role for Bt cotton in IPM for smallholders in Africa?

Hillocks¹

2005

International Journal of Pest Management

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Cotton is an important crop in many countries in sub-Saharan Africa (SSA). Cotton varieties transformed with genes from Bacillus thuringiensis (Bt) are resistant to a number of lepidopteran bollworm pests of cotton. Bt cotton varieties have been widely adopted in Australia, China, India, the USA and elsewhere. To date, South Africa is the only country in SSA that has planted Bt cotton, but many other African countries are soon to do so. This paper reviews IPM in a number of African countries and considers the possible contribution that Bt cotton might make to IPM for African smallholders.

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Section: Pest Control Spectrum Of Bt Cottonsmentioning

confidence: 99%

Is there a role for Bt cotton in IPM for smallholders in Africa?

Hillocks¹

2005

International Journal of Pest Management

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“…Plant bugs (Hemiptera: Miridae) and stink bugs are destructive pests of cotton (Greene et al, 1999;Wu et al, 2002;Lu et al, 2010). Plant bugs like other insects search and locate their hosts relying on highly specific and sensitive olfaction systems to detect specific odorants for food source, oviposition sites, mating with partners and avoidance of toxins and predators (Breer et al, 1994;Field et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Functional characterization and immunolocalization of odorant binding protein 1 in the lucerne plant bug, Adelphocoris lineolatus (GOEZE)

Wang

et al. 2011

Arch Insect Biochem Physiol

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In the insect phylum, the relationships between individuals and their environment are often modulated by chemical communication. Odorant binding proteins (OBPs) are widely and robustly expressed in insect olfactory organs and play a key role in chemosensing and transporting hydrophobic odorants across the sensillum lymph to the olfactory receptor neuron. In this study, a novel OBP gene (AlinOBP1) in the lucerne plant bug, Adelphocoris lineolatus was identified, cloned and expressed. Real-time PCR results indicated that the expression level of AlinOBP1 gene differed in each developmental stage (from first instar to adult) and was predominantly expressed in the antennae of adults. The expression level of AlinOBP1 was 1.91 times higher in male antennae than in female antennae. The binding properties of AlinOBP1 with 114 odorants were measured using a fluorescence probe, N-phenyl-1-naphthylamine (1-NPN), with fluorescence competitive binding. The results revealed that AlinOBP1 exhibits high binding abilities with two major putative pheromone components, ethyl butyrate and trans-2-hexenyl butyrate. In addition, it was observed that six volatiles released from cotton, octanal, nonanal, decanal, 2-ethyl-1-hexanol, b-caryophyllene and b-ionone also bind to AlinOBP1. Immunocytochemistry analysis showed that AlinOBP1 was expressed in the sensillum lymph of sensilla trichodica and sensilla basiconca. Our results demonstrate that AlinOBP1 may function as a carrier in the chemoperception of the lucerne plant bug. C 2011 Wiley Periodicals, Inc.

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“…6-8 adults per leaf, the crop was treated with the following treatments of bio rational pesticides thrice at 10 days intervals of each spray. Sprayings were done by employing a knapsack sprayer using hollow cone nozzle and the latter were held 0.3-0.5 meter above the cotton plants while spraying (Wu et al, 2002).…”

Section: Methodsmentioning

confidence: 99%