DIVERSITY OF PEST AND NATURAL ENEMIES SWEET CORN (Zea mays saccharata [Sturt.] Bailey) IN SANUR VILLAGE, EAST DENPASAR
Funding period : 2020-2020 Active
Abstrak
There are seven pests found in the corn plantations in Sanur, among others: house fly (Musa domestica) Diptera, grasshopper (Dissosteira carolina) Caelifera, kumbang (Orystes rhinoceros) Coleoptera, caterpillar (Spodoptera litura) Coleoptera, caterpillar (Helicoverpa armigera) Lepidoptera, walang sangit (Leptocorisa aratorius) Hemiptera, and white tick (Trialeurodes vaparariorum) Homoptera. Natural enemies found during the research were: army beetles (Chauliognathus lugubris) Coleoptera, army dragonflies (Dunia odonatan) Odonata, wasps (Apis dorsata) Hymenoptera, and red dragonflies (Oryhetrum sabina) Odonata. The highest pest prevalence was obtained from house flies with a value of 21.08%, while there was a natural enemy obtained from red dragonflies with a value of 31.75%. The diversity index of pests was obtained 3.2099 with a dominance index of 0.8479, while the index of diversity of natural enemies was obtained 2.2956 with a dominance index of 0.7417. The linear regression relationship between house flies and cobworms with temperature had a significant effect, while the regression relationship between stinky bugs, and temperature had a very significant effect. The regression relationship between house fly and humidity had a significant effect, the beetle with humidity was very real, and the stink bugs with humidity had a very significant effect, while the multiple regression relationship between stink bugs with temperature and humidity had a very significant effect. The regression relationship between natural enemies (army dragonflies) and temperature shows a very real effect.