Rotylenchulus reniformis Linford and Oliveira 1940

Plant stand was not affected by the additional fertilizer or Vydate ® C-LV combinations (Table 4). The additional fertilizer and nematicide combinations did not significantly increase root fresh weight at PHS + FB. Rotylenchulus reniformis eggs per gram of root were not significantly decreased when sampled at PHS + FB. The combination of a nematicide ST + (NH 4) 2 SO 4 + Vydate ® C-LV + Max-In ® Sulfur at PHS and FB had the lowest R. reniformis eggs per gram of root when sampled at PHS + FB. The combination of a nematicide ST + (NH 4) 2 SO 4 + Vydate ® C-LV at PHS supported a significantly larger lint yield than the treatments with no nematicide ST, which applied (NH 4) 2 SO 4 at PHS, 28-0-0-5 at PHS and the combination of a nematicide ST + 28-0-0-5 at PHS and FB (P ≤ 0.10). Lint yield was increased by 546 kg /ha, 603 kg /ha, 580 kg /ha or 31%, 34% and 33% with the combination of a nematicide ST + (NH 4) 2 SO 4 + Vydate ® C-LV at PHS when compared to the three lowest yielding combinations, (NH 4) 2 SO 4 at PHS, 28-0-0-5 at PHS and a nematicide ST + 28-0-0-5 at PHS and FB.

Mean profits for fertilizer applications of (NH 4) 2 SO 4 and 28-0-0-5 at PHS with no nematicides averaged $853.62(Table5).AnematicideSTwithanadditionalfertilizerapplicationatPHSincreasedmeanprofitby$46/ha from an additional fertilizer alone. A nematicide ST with an additional application of fertilizer at PHS and FB increased profit by $32/hafromanadditionalfertilizeralone.CombinationswithVydate\circledR C-LVappliedatPHShadanincreasedprofitof$137/ha from an additional fertilizer alone. Fertilizer and nematicide combinations that included Vydate ® C-LV at PHS and FB had an increased profit of $48/ha.Allcombinationswerecomparedtothemeanprofitoftreatmentsofanadditionalfertilizerwithnonematicidestodetermineincreasedprofitperhectare.ThecombinationofanematicideST+(NH4)2SO4+Vydate\circledR C-LVatPHShadthegreatestoverallmeanprofitof$1175.87 which was significantly greater than the mean profit of (NH 4) 2 SO 4 at PHS, 28-0-0-5 at PHS and a nematicide ST + 28- 0-0-5 at PHS and FB.