Rotylenchulus reniformis Linford and Oliveira 1940

Rotylenchulus reniformis microplot evaluation A nematicide ST + 28-0-0-5 + Vydate® C-LV + Max-In® Sulfur at PHS was the most effective combination in reducing R. reniformis eggs per gram of root sampled at PHS + FB. The combination of a nematicide ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur at PHS and FB was the most effective treatment in increasing seed cotton yield. The combination of a nematicide ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur at PHS and FB increased seed cotton yields by 50% when compared to the combination of a nematicide ST + (NH4)2SO4 at PHS. Research supports the use of Vydate® C- LV on cotton during PHS and sequential treatments reducing R. reniformis population levels (Hammes et al., 1999). Applications of nematicides when analyzed individually increased lint yields by 8% with a nematicide ST, 19% with a single Vydate® C-LV application and 29% with a double application of Vydate®C-LV.肾形线虫（Rotylenchulus reniformis）小区试验评价：于播种后始花期（PHS）施用杀线虫剂ST + 28-0-0-5型肥料 + Vydate® C-LV + Max-In® Sulfur的组合，在播种后始花期+终花期（FB）取样的根组织中，每克根的肾形线虫卵量降低效果最为显著。于播种后始花期及终花期施用杀线虫剂ST + 硫酸铵[(NH4)2SO4] + Vydate® C-LV + Max-In® Sulfur的组合，是提升籽棉产量效果最优的处理方案。相较于仅于播种后始花期施用杀线虫剂ST + 硫酸铵[(NH4)2SO4]的组合，上述播种后始花期+终花期施用的杀线虫剂ST + 硫酸铵 + Vydate® C-LV + Max-In® Sulfur组合可使籽棉产量提升50%。已有研究证实，在棉花播种后始花期（PHS）施用Vydate® C-LV并进行序贯施药，可有效降低肾形线虫种群数量（Hammes等，1999）。单独施用杀线虫剂的试验分析显示，杀线虫剂ST可使皮棉产量提升8%，单次施用Vydate® C-LV可提升19%，两次施用Vydate® C-LV则可提升29%。