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Reference Report for IND79101225
Title:Microorganisms associated with feeding and from various organs of Nezara viridula capable of transmitting Nematospora coryli, the causative agent of yeast spot disease in soybean.
Authors:Ragsdale, D.W., Larson, A.D., Newsom, L.D.
Source:J. Econ. Entomol. 1979, 72(5):725-731
Abstract:The internal microflora transferred by feeding southern green stink bugs varied among insects which were field collected from soybean at defined stages of plant development. Thirty-five microorganisms transferred by feeding stink bugs were identified at least to genus [Corynebacterium, (11); Erwintea (5); Pseudomonas (3); Escherichia (2); 1 each of Micrococcus, Streptococcus, Staphylococcus, Leuconostoc, Xanthomonas, Flavobacterium, Aeromonas, Arthrobacter and Bacillus; Penicillium spp. (2); and Nematospora coryli (2)]. Two transferred fungi were identified as the causative agent of yeast spot disease of soybean, N. coryli Peglion, but were transmitted by only 2 of 118 insects. Five of the 31 bacteria isolated (3 Corynebacterium and 2 Pseudomonas) produced leaf spots and vein necrosis when sprayed on seedling soybean. Over 90% of the isolated microorganisms produced an extracellular lipase which could contribute to the reduced oil content reported in stink bug-damaged soybean. This study indicated that no more than a casual relationship exists between microbes and stink bugs. Nezara viridula (L.) has the potential to be a significant vector of both fungal and bacterial diseases of soybean.






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