| dc.description.abstract | Information on the aphids that associated with weeds is relatively limited. The research aimed to study the diversity of aphids and their colony characteristics in weeds at Bogor. The experiments were conducted by doing aphid sampling in 20 locations at Bogor area. Size of colonies, winged aphids (alatae), wingless aphids (aptera), symptomp caused by aphids, and aphids-ants association were observed. Slide preparation of aphids were used to identify the species. The studies have shown that there were nine aphid species found in weeds in Bogor area:, Aphis craccivora Koch, Aphis euginae van der Goot, Aphis gossypii Glover, Aphis spiraecola Patch, Hysteroneura setariae (Thomas), Jaksonia papillata Theobald, Melanaphis sorghi (Theobald), Schizapis graminum (Rondani), and Sitobion miscanthi (Takahashi). H. setariae was found numerously on the weeds. Wingless aphids was found in a big number of population. Weeds belong to the Family Asteraceae were the most attacked by aphids. Fifteen species of ants associated with aphids, they were Acanthomyrmex sp., Acropyga sp., Cardiocondyla sp., Camponotus sp., Cerapachys sp., Crematogaster sp., Dolichoderus sp., Loweriella sp., Monomorium sp., Myrmecina sp., Paratrecina sp., Philidris sp., Polyrhachis sp., Pseudolasius sp., and Tetramorium sp. The pictorial and dichotomy identification keys of aphids were constucted based on the morfological characters. | en |
