Key Laboratory of Integrated Pest Management on Crops in Northwestern Oasis, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Urumqi, China.
State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
Pest Manag Sci. 2021 Apr;77(4):1829-1838. doi: 10.1002/ps.6208. Epub 2020 Dec 24.
Cotton has been increasingly harmed by the mirid bug (Lygus pratensis Linnaeus) in Xinjiang Uyghur Autonomous Region, China. Using trap plants within or around the border of the cotton may be a beneficial management strategy for this pest of cotton.
The potential of safflower (Carthamus tinctorius Linn) as a trap plant for managing L. pratensis was evaluated in laboratory and field experiments. Y-tube olfactometer assays demonstrated that L. pratensis was highly attracted to volatiles derived from safflower. Field experiments showed that safflower plots hosted more L. pratensis (adults and nymphs) than cotton plots. Early-sown safflower had more L. pratensis than mid-sown or late-sown safflower, and was more conducive to the settlement and reproduction of L. pratensis. The density of L. pratensis on safflower trap crops in three sowing patterns was significantly higher than on adjacent cotton. The pattern of intercropping safflower trap crops was more effective at reducing densities of L. pratensis on cotton than placing safflower as 'spot' trap crops or peripheral trap crops. However, this result also may be related to the overall area of the safflower trap crops. With regular chemical control of L. pratensis on safflower trap crops, the number of cotton bolls was increased by 10.04%, whereas the rate of boll damage was reduced by 33.44%, compared to cotton without safflower trap crops and insecticide sprays.
Safflower shows promise as an effective trap crop for L. pratensis, and may contribute to controlling L. pratensis in cotton. © 2020 Society of Chemical Industry.
在中国新疆维吾尔自治区，棉花越来越受到盲蝽（Lygus pratensis Linnaeus）的危害。在棉花田或其周围种植诱集植物可能是一种有益的盲蝽防治策略。
在实验室和田间试验中评估了红花（Carthamus tinctorius Linn）作为防治 L. pratensis 的诱集植物的潜力。Y 型嗅觉仪测定表明，L. pratensis 对红花挥发物有强烈的趋性。田间试验表明，红花田的 L. pratensis（成虫和若虫）比棉花田多。早播红花比中播或晚播红花吸引更多的 L. pratensis，更有利于 L. pratensis 的定殖和繁殖。三种播种方式下红花诱集作物上的 L. pratensis 密度明显高于相邻棉花。间作红花诱集作物比在红花诱集作物周围种植或作为“点”状诱集作物种植更能有效降低棉花上 L. pratensis 的密度。然而，这一结果也可能与红花诱集作物的总面积有关。在定期对红花诱集作物进行 L. pratensis 化学防治的情况下，与没有红花诱集作物和杀虫剂喷雾的棉花相比，棉花的棉铃数增加了 10.04%，而棉铃受损率降低了 33.44%。
红花作为防治 L. pratensis 的有效诱集作物具有很大的潜力，可能有助于控制棉花上的 L. pratensis。© 2020 英国化学学会。
