North J H, Gore J, Catchot A L, Stewart S D, Lorenz G M, Musser F R, Cook D R, Kerns D L, Dodds D M
Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology, Mississippi State University, MS.
Delta Research and Extension Center, Mississippi State University, Stoneville, MS.
J Econ Entomol. 2018 Feb 9;111(1):10-15. doi: 10.1093/jee/tox324.
Neonicotinoid insecticides are currently one of two classes of chemicals available as a seed treatment for growers to manage early season insect pests of cotton, Gossypium hirsutum L. (Malvales: Malvaceae), and they are used on nearly 100% of cotton hectares in the midsouthern states. An analysis was performed on 100 seed-treatment trials from Arkansas, Louisiana, Mississippi, and Tennessee to determine the value of neonicotinoid seed treatments in cotton production systems. The analysis compared seed treated with neonicotinoid insecticides seed treatments plus a fungicide with seed only treated with fungicide. When analyzed by state, cotton yields were significantly greater when neonicotinoid seed treatments were used compared with fungicide-only treatments. Cotton treated with neonicotinoid seed treatments yielded 123, 142, 95, and 104 kg ha-1, higher than fungicide only treatments for Arkansas, Louisiana, Mississippi, and Tennessee, respectively. Across all states, neonicotinoid seed treatments provided an additional 115 kg lint ha-1 comparedwith fungicide only treated seed. Average net returns from cotton with a neonicotinoid seed treatment were $1,801 per ha-1 compared with $1,660 per ha-1 for cottonseed treated with fungicide only. Economic returns for cotton with neonicotinoid seed treatments were significantly greater than cottonseed treated with fungicide only in 8 out of 15 yr representing every state. These data show that neonicotinoid seed treatments provide significant yield and economic benefits in Mid-South cotton compared with fungicide only treated seed.
新烟碱类杀虫剂是目前种植者可用于棉花种子处理以防治棉花（陆地棉，锦葵目：锦葵科）早期害虫的两类化学药剂之一，并且在美国中南部各州近100%的棉花种植公顷上都有使用。对来自阿肯色州、路易斯安那州、密西西比州和田纳西州的100个种子处理试验进行了分析，以确定新烟碱类种子处理在棉花生产系统中的价值。该分析将用新烟碱类杀虫剂种子处理加杀菌剂处理的种子与仅用杀菌剂处理的种子进行了比较。按州分析时，与仅用杀菌剂处理相比，使用新烟碱类种子处理时棉花产量显著更高。用新烟碱类种子处理的棉花产量分别比阿肯色州、路易斯安那州、密西西比州和田纳西州仅用杀菌剂处理的棉花高出123、142、95和104千克/公顷。在所有州中，与仅用杀菌剂处理的种子相比，新烟碱类种子处理使皮棉产量每公顷增加115千克。新烟碱类种子处理的棉花平均净收益为每公顷1801美元，而仅用杀菌剂处理的棉籽平均净收益为每公顷1660美元。在代表每个州的15年中的8年里，新烟碱类种子处理的棉花经济回报显著高于仅用杀菌剂处理的棉籽。这些数据表明，与仅用杀菌剂处理的种子相比，新烟碱类种子处理在中南部棉花种植中提供了显著的产量和经济效益。
