The effect of HaNPV frequency application toward Protection of tomatoes (Solanum lycopersicum) from insects larva ordo Lepidoptera attack

Ainal Mardhiah, Wardono Niloperbowo

Abstrak


Insects of the order Lepidoptera pests are extremely destructive and cause substantial losses to the agricultural business. A common method used to control insect pests is to use synthetic insecticides. But they can cause harmful effects on the environment, such as the emergence of resistance and resurgence of insect pests, killing of non-target organisms, environmental pollution and human health problems due to residues of synthetic insecticides on the crop. Through his research, ITB has developed a virus-based pesticide for controlling pest insects of the order Lepidoptera. Various studies in the laboratory showed that isolates HaNPV ITB effectively control various species of insects of the order Lepidoptera and non pathogenic to insect species from other orders. This research studied the effectiveness of pesticides in the field to determine the effect of the applied frequency HaNPV tomato plant protection from insect larvae of the order Lepidoptera. The experiment was carried out with one factor, namely the frequency of applications of HaNPV with 5 experimental. The experiment was carried out by applying a completely Randomized design (CRD) and  50 repititions. Parameters observed included insect infestation pests of the order Lepidoptera dan insect infestations of pests other than order Lepidoptera. The results of this study indicate that HaNPV used as an effective insecticide to control insect pests of the order Lepidoptera. Tomato plants treated with synthetic insecticides showed infestation of insects of the order Lepidoptera with 0.0000 level individuals who are not significantly different from infestations of pests on tomato plants are treated HaNPV, with pest infestations its value each individual is 0.0025, 0.0012 individuals and 0.0018 individuals. The results also showed that the use of HaNPV was not effective in protecting tomatoes planst from inscet pests other than Lepidoptera, with the level of insect infestation in the treatment p2 = 8.6 individual while the plants applied to HaNPV on plants p3 = 11.6 individual, p4=12,14 individual and p5 = 12,16 individual, these results indicate that tomato plants with the application of synthetic insecticides are more effective in controlling insect infestations ordo than Lepidoptera.

Keywords: HaNPV, Bioinsektisida, Lepidoptera, PHT

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Referensi


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