TY  - PRO
AU  - Toledo B.,J.
AU  - Duveiller,E.|Dubin,H.J.|Reeves,J.|McNab,A.
AU  - Guzman A.,E.
ED  - Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
TI  - Importance of spot blotch caused by Bipolaris sorokiniana in Bolivia
SN  - 970-648-001-3
U1  - 633.1194 
PY  - 1998///
CY  - Mexico, DF (Mexico)
PB  - CIMMYT|UCL|BADC
KW  - Bipolaris
KW  - Blotches
KW  - Bolivia
KW  - Crop management
KW  - AGROVOC
KW  - Plant diseases
KW  - Plant production
KW  - Sowing date
KW  - Spots
KW  - Triticum
KW  - CIMMYT
N2  - In Bolivia, more than 70% of wheat production is grown on the eastern lowlands of Santa Cruz Department. Wheat is an important winter crop grown after the summer soybean crop. In early sown wheat (15 April-10 May), environmental conditions prevailing in the humid and intermediate areas of the region are very favorable for development of spot blotch, caused by Bipolaris sorokiniana. Yield losses of up to 57% have been observed but are highly dependent on planting date, wheat variety, and climatic conditions. Optimum time for fungicide treatment is 15 days after first observation of symptoms, which corresponds to heading stage for normal sowing times (May)
ER  -