Pathogenicity of entomopatogenic fungi isolates from infected pest crop against dry wood termites Cryptotermes sp. (Ioptera: Kalotermitidae)

Abstract

Abstract Through exploration at several farming regions in X Koto sub distric, Tanah Datar regency, West Sumatera province (Kandang Sampia, Kayu Tanduak, Panyalaian, Koto Baru), were found 38 fungi isolates. Some isolates (31.58%) pathogenic against drywood termites, Cryptotermes sp. Most of those fungi belong to Ascomycota division (Aspergillus niger, Aspergillus sp. 1, Aspergillus sp. 2, Aspergillus sp. 3, Aspergillus sp. 4, Aspergillus sp. 5, Penicillium sp. 1, Penicillium sp. 2, Penicillium sp. 3, Penicillium sp. 4), while 2 fungi did not identified yet (Sp. 1 and Sp. 2). A. niger is the most effective fungi to control Cryptotermes sp., that indicated by its ability to kill termites (at 107 conidial/ml could kill 93.94% after 7 days infected, higher viability and spore formation), but not differed with Aspergilus sp. 1 and Penicillium sp. 2. The lowest ability showed by Sp. 1 fungi (at 107 conidial/ml only could kill 60.61% after 7 days infected).