Root-knot nematodes are mainly controlled by using synthetic nematicides, but their excessive use is prohibited due to associated health hazards which demand for suitable alternatives. The overreliance on nematicides can be curtailed by using biological control agents possessing nematicidal or nematostatic properties. Therefore, in the present study, effectiveness of seven indigenous species of Trichoderma were tested for their ability to suppress the population of Javanese root-knot nematode, Meloidogyne javanica, and improve growth variables of green gram. All the Trichoderma species resulted in an increase in shoot and root lengths and shoot weight while a decrease was observed in root weight. Maximum increase in shoot length (45.5%) was found in case of T. harzianum followed by T. hamatum and T. viride whereas the increase was the minimum where T. pseudokoningii and T. koningii were applied. Similarly, maximum increase in shoot weight was recorded with T. viride (56.1%) followed by T. harzianum (55%) and the minimum with T. pseudokoningii. As regards root length, it was the maximum in treatments with T. hamatum (46.2%) and T. harzianum (45.1%) and minimum with those where T. koningii and T. pseudokoningii were applied. Contrarily, maximum reduction in root weight was observed in treatments where T. harzianum (37.8%) and T. viride (35.8%) were applied while T. koningii and T. pseudokoningii resulted in minimum decrease. All the Trichoderma species significantly caused reductions in the number of galls and eggs and reproductive factor of the nematode over control. Maximum reduction in numbers of galls and eggs were observed with T. viride (49 and 53%) followed by T. harzianum (46 and 53%) while the minimum reduction was recorded with T. pseudokoningii followed by T. atroviride. Likewise, T. viride caused the maximum reduction in reproductive factor of M. javanica (81%) followed by T. harzianum (78%) and T. asperellum (75%). On the other hand, the minimum reductions in reproductive factor were observed with T. pseudokoningii and T. koningii.

根结线虫主要通过使用合成杀线虫剂来控制，但由于相关的健康危害而需要适当的替代品，因此禁止过度使用。通过使用具有杀线虫或抑线虫特性的生物防治剂可以减少对杀线虫剂的过度依赖。因此，在本研究中，测试了七个木霉属木本物种抑制爪哇根结线虫（Meloidogyne javanica）种群并改善绿豆的生长变量的能力。所有木霉属物种导致枝条和根长和枝条重量增加，而根重减少。如果出现以下情况，则发芽长度最大增加（45.5％）哈茨木霉（T. harzianum）紧随其后是哈姆木霉（T. hamatum）和维尔纽斯木霉（T. viride），而使用假单胞菌（T. pseudokoningii）和康宁草（T. koningii）的增加最小。类似地，记录的枝条重量最大增加是用T. viride（56.1％），然后是T. harzianum（55％），最小是T. pseudokoningii。至于根长度，它是在与处理的最大T. hamatum（46.2％）和哈茨木霉（45.1％）和最小与那些T.康宁木霉和T. pseudokoningii被应用。相反，在治疗中观察到的根最大重量减少，其中哈茨木霉（37.8％）和绿色木霉（35.8％），而施加T.康宁木霉和T. pseudokoningii导致最小下降。所有木霉属物种均明显导致过度控制的gall虫和卵子数量减少，线虫的生殖因子减少。在瘿和蛋的数目最大降低与观察到T. virid E（49和53％），其次是哈茨木霉（46和53％），而最小压下用记录T. pseudokoningii随后T.深绿。同样绿色木霉引起的生殖因子最大降低爪哇根结线虫（81％），其次是哈茨木霉（78％）和T.棘孢（75％）。在另一方面，用观察生殖因素最小的减少T. pseudokoningii和T.康氏木霉。