Hemp sesbania (Sesbania exaltata) control in rice (Oryza sativa) with the bioherbicidal fungus Colletotrichum gloeosporioides f. sp aeschynomene formulated in an invert emulsion
Hemp sesbania (Sesbania exaltata) control in rice (Oryza sativa) with the bioherbicidal fungus Colletotrichum gloeosporioides f. sp aeschynomene formulated in an invert emulsion
复制标题
DOI：
10.1080/09583157.2011.625398
复制
发表时间：
2011-01-01
影响因子：
1.4
通讯作者：
Bowling, Andrew J.
中科院分区：
文献类型：
--
作者：
Boyette, C. Douglas;Gealy, David;Bowling, Andrew J.
在温室和田间试验中，用干燥配制的生物除草真菌炭疽菌（Colletotrichum gloeosporioides f. sp. aeschynomene）孢子测试了一种反向乳剂（MSG 8.25），炭疽菌是豆科杂草七叶草（北方联合叶草）的一种剧毒病原体，但被认为对另一种更严重的豆科杂草Sesbania exaltata（麻田菁）具有“免疫力”。1∶1 （v/v）真菌/反相乳剂混合物在温室条件下接种21 d后，麻田苗侵染率为100%，死亡率为100%。在德国斯图加特和美国斯通维尔进行的真菌/转化制剂重复田间试验中，田麻的控制率分别为85%和90%。这些结果表明，该反相乳剂扩大了该病菌的寄主范围，同时提高了该病菌的生物除草潜力。
In greenhouse and field experiments, an invert emulsion (MSG 8.25) was tested with dried, formulated spores of the bioherbicidal fungus Colletotrichum gloeosporioides f. sp. aeschynomene, a highly virulent pathogen of the leguminous weed Aeschynomene virginica (northern jointvetch), but considered 'immune' against another more serious leguminous weed, Sesbania exaltata (hemp sesbania). A 1: 1 (v/v) fungus/invert emulsion mixture resulted in 100% infection and mortality of inoculated hemp sesbania seedlings over a 21-day period under greenhouse conditions. In replicated field tests of the fungus/invert formulation conducted in Stuttgart, AR, and Stoneville, MS, hemp sesbania was controlled 85 and 90%, respectively. These results suggest that this invert emulsion expands the host range of C. gloeosporioides f. sp. aeschynomene, with a concomitant improvement of the bioherbicidal potential of this pathogen.