【摘要】 油茶炭疽病生物防治的研究,在我国还属首次探索。在油茶树皮上分离到的一个芽孢杆菌株系,能减少炭瘟病茵对油茶花器的侵染,并降低了油茶果实的发病率。经测定的10种植物炭疽菌中,杨树炭疽菌在油茶果实上表现有明显的人工免疫作用。单独和综合利用这两种益菌进行多点防治试验,取得较好效果。更多还原

【Abstract】 Oil tea (Camellia oleifera Abel) anthracnose caused by Glomerella camelliae is a serious disease. The pathogen of anthracnose in flowers can infect young fruits directly, A bacteria, Bucillus subtillis, isolated from old back of oil tea has strong ability to occupy the place in flowers, and thus prevents the pathogen to attact fruits. The proportion of diseased fruits were reduced about 60%.Colletotrichum gloeosporioides cul. Populus can penetrete young fruits of oil tea but without any sympotoms. Spraying suspensive solution of G. camelliae spores on the fruits inoculated by C. gloeosporioides cul. populus, the germination of G.camelliae spores were inhibited. In the stand, spraying C. gloeosporioides cul. populus spores on oil tea trees, the rate of diseased fruits were reduced obviously.In the field, using the bacteria during bloom of oil tea trees and using C. gloeosporioides cul. populus in the stage of young fruits continuosly, the effect of control was more obvious. This biological control method can avoid the chemical pollution.更多还原