Combining the botanical insecticides NSK extract, NeemAzal T 5%, Neemix 4.5% and the entomopathogenic nematode Steinernema feltiae Cross N 33 to control the peach fruit fly, <i>Bactrocera zonata</i> (Saunders)
2008
Mahmoud M, F.
Botanical insecticides based on azadirachtin and the entomopathogenic nematode Steinernema feltiae were evaluated for their control of the peach fruit fly, <i>Bactrocera zonata</i>. Laboratory bioassays determined the potential of combinations between the biological control agent S. feltiae and the botanical insecticides NSK, NeemAzal T 5%, Neemix 4.5% against 3rd instar larvae of <i>B. zonata</i>. Of 25 treatment combinations between azadirachtin from NSK extract and <i>S. feltiae</i>, 18 gave synergistic responses, 4 were additive, none antagonistic and 3 without any response. The same number of combinations with NeemAzal T 5% showed 19 synergistic responses, 1 additive, none antagonistic and 5 without any response. Combinations of Neemix 4.5% and S. feltiae showed 11 synergistic responses, 5 additive, 3 antagonistic and 6 without any response. The combined use of botanical insecticides based on azadirachtin, especially NSK extract and NeemAzal T 5%, with the entomopathogenic nematode <i>S. feltiae</i> may offer an integrated approach to increase the efficacy of control of the peach fruit fly, <i>B. zonata</i>, by entomopathogenic nematodes.
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