Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Eva L. BAIDENG, Regina R. BUTARBUTAR, Hanry J. LENGKONG, Rooije R.H. RUMENDE, Lady C.CH.E. LENGKEY, Hendronoto A.W. LENGKEY

Pangium sp. has the potential to be developed as a biopesticide because it has the ability to inhibit the activity of several types of insect pests. In this study, pangium leaf extract and pesticide were applied to Brassica oleraceae cabbage farms; to determine the type and population of pests and their natural enemies. Each carried out on an area of 500m², with 1,250 cabbage plants. Observation and sampling of insects and natural enemies at the larval stage, were carried out seven times every seven days starting on 14 DAP (days after planting); diagonally, where there are five sampling spots, by sweeping using insect nets five times; then collected and identified. Results indicated on the treatment area of pangium leaf extract found seven types of pests: Plutella xylostella, Crocidolomia pavonana, Aphis sp., Liriomyza brassicae, Spodoptera sp., Chrysodeixis calcites, Grylotalpa sp., and Parmarion sp.; dominated by P. xylostella and C. pavonana. The natural enemies found were six types of predators: Coenagrionidae, Asilidae, Mantidae, Sphecidae, Libellula sp., Menoxhilus sexmaculata and one parasitoid Diadegma semiclausum. In the pesticide treatment, four types of pests: P. xylostella, C. pavonana, Aphis sp; L. brassicae; and four types of natural enemies/predators: Coenagrionidae, Asilidae, Mantidae, Sphecidae and one parasitoid D. semiclausum. The average population in the pangium leaf extract treatment area, pests 8.91 individuals, natural enemies/predators 2.35 individuals and parasitoids 6.13 individuals. In the pesticide treatment area: pests 3.05 individuals, natural enemies/predators 1.2 individuals and parasitoids 0.51 individuals.

[Read full article] [Citation]

SPUPOPUPNO1