The Infestations and Color Polymorphism of Asiatic Palm Weevil (Rhynchophorus vulneratus Panzer) in Coconut Palm
Penulis/Author
R. HANINDYO ADI P (1); Prof. Dr. rer. nat. Andhika Puspito Nugroho, S.Si., M.Si. (2); Dr. R.C. Hidayat Soesilohadi, M.S. (3); Abdulrahman S. Aldawood (4); Sukirno, S.Si., M.Sc., Ph.D. (5)
Tanggal/Date
2023
Kata Kunci/Keyword
Abstrak/Abstract
Asiatic palm weevil Rhynchophorus vulneratus ( Panzer) i s o n e o f t h e major insect pests of coconut and potentially become pest of oil palm in Indonesia. Information regarding the habitat preferences of these pests is still limited. This research aimed to study the infestation a n d color polymorphism of R. vulneratus at different altitude levels. As a research model, the research was conducted in Yogyakarta, which has habitats of 0-1000 meters above sea level (masl). The study was carried out by dividing the five altitude levels. The research was conducted during the rainy, transition, and dry seasons. The Population and preference habitat of R. vulneratus were studied by using aggregation pheromone traps in each site. The color polymorphisms study was conducted based on pattern pronotum R. vulneratus captured. The study showed that altitudes have affected the abundance and diversity of color polymorphism of R. vulneratus. The results showed that R. vulneratus preferred the habitat at 0-300 masl. The number of rusty red morphs was higher (64.4%) than the red stripes (35.6%). The pronotum pattern in the red stripe morph was higher (38 variations in males and 29 variations in females) than in rusty red morphs (30 variations in males and 28 variations in females). The population of R. vulneratus tended to increase in the dry season (June – September, 2,417 total individuals captured) and decrease in the wet season (February – April, 151 total individuals captured). T he peak o f the number of R. vulneratus captured was in the dr y season in September (1 ,025 ind ividuals) .
