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frogeye
Genetic Analysis of Frogeye Leaf Spot Resistance in PI54610 and Peking Soybean
      
Molecular Mapping of the Rcs3 Gene for Resistance to Frogeye Leaf Spot in Soybean
      
The effect of timing of fungicide applications on control of frogeye leaf spot and grain yield of soybeans
      
Soybean cultivar Samsoy 1, and the breeding lines TGx 849-313D and TGx 996-26E, grown in a field with a heavy epidemic of frogeye leaf spot caused byCercospora sojina, were treated with double foliar applications of the fungicide benomyl.
      
The results suggest that fungicide spraying initiated at R1 and followed up at R3 is most effective in frogeye leaf spot control and can also result in higher grain yields, than applications made earlier or later in the season.
      
Control of frogeye leaf spot, however, is best achieved by growing resistant cultivars.
      
Incidence and severity of frogeye leaf spot and associated yield losses in soybeans in agroecological zone II of Zambia
      
The incidence and severity of frogeye leaf spot of soybean (Glycine max (L.) Merr.) was studied in agroecological region II of Zambia during the 1997/98 crop growing season.
      
Soybean cultivars were evaluated for yield losses resulting from frogeye leaf spot.
      
The results showed that the incidence of frogeye leaf spot was highest in Southern province (5.1), followed by Lusaka province (4.9) while Central province had the lowest disease incidence (1.8).
      
Yield losses due to frogeye leaf spot occurred through a reduction in seed size.
      
Captan may produce frogeye-like spotting of the foliage of Delicious, Stayman, and Winesap early in the season.
      
 

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