Beberapa Aspek Biologi Kutu Putih (Paracoccus marginatus) (Hemiptera: Pseudococcidae) pada Tanaman Terung di Rumah Kaca

Abstract

P. marginatus is a polypagic pest that attacks eggplant plants. The biology of mealybug insects (Paracoccus marginatus) has been carried out from January 2020 to June 2020 in the greenhouse and plant pest laboratory, Faculty of Agriculture, University of Sumatra Utara using descriptive methods. This study aims to study several aspects of the biology of mealybug (P. marginatus) in eggplant plants. The results showed that the life cycle of P. marginatus ranged between 31-37 (33,5 ± 5,18) days: eggs hatched after 6-8 (7.2 ± 0.78) days, first instar nymph 5-7 (5.6 ± 0.69) days, instar nymph second male 5-6 (5.4 ± 0.51) days, second female instar nymph 4-5 (4.4 ± 0.51) days, third male instar nymph 3-4 (3.5 ± 0.52) days, third female instar nymph 4-5 (4.5 ± 0.52) days and male pupal 4-7 (4.7 ± 0.94). The development time of the adult stage for female and male progeny were 14-16 (14.7 ± 0.67) days and 3-5 (4.2 ± 0.78) days. Female imago during their life can produce 1-2 ovisac with the percentage of eggs hatching 89.08%. The sex ratio of P. marginatus was 1: 2.67.

P. marginatus merupakan hama polipag yang menyerang tanaman terung. Penelitian Biologi serangga kutu putih (Paracoccus marginatus) telah dilaksanakan mulai Januari sampai Juni 2020 di rumah kaca dan laboratorium Hama Tumbuhan, Fakultas Pertanian, Universitas Sumatera Utara menggunakan metode deskriptif. Penelitian ini bertujuan untuk mempelajari beberapa aspek biologi kutu putih (P. marginatus) pada tanaman terung. Hasil penelitian menunjukkan bahwa: telur menetas setelah 6-8 (7.2±0.78) hari, nimfa instar pertama 5-7 (5.6±0.69) hari, nimfa instar kedua jantan 5-6 (5.4±0.51) hari, nimfa instar kedua betina 4-5 (4.4±0.51) hari, nimfa instar ketiga jantan 3-4 (3.5±0.52) hari, nimfa instar ketiga betina 4-5 (4.5±0.52) hari dan pupa jantan 4-7 (4.7±0.94) hari. Siklus hidup P. marginatus berkisar antara 31-37 (33,5 ± 5,18) hari. Umur imago betina 14-16 (14.7±0.67) dan imago jantan 3-5 (4.2±0.78) hari. Imago betina selama hidupnya dapat menghasilkan 1-2 ovisak dengan presentase telur yang menetas 89.08%. Perbandingan nisbah kelamin P. marginatus jantan : betina adalah 1 : 2,67