Sorghum Ergot: New Disease Threat to the Sorghum Industry

2 pp., 1 color photoSorghum ergot is caused by a fungus that infects the ovaries of sorghum flowers, converting each into a white fungal mass. First discovered in Texas in March 1997, the fungus can produce large amounts of honeydew that interferes with harvest and supports soprophytic fungal growth

Bacterial Fruit Blotch of Watermelon

2 pp., 5 color photosBacterial fruit blotch is a disease occurring sporadically in almost all areas of Texas where watermelons are grown. This publication discusses symptoms, diagnosis and disease development and management

Effect of Fungicide Applications on Grain Sorghum ( Sorghum bicolor

Field studies were conducted in the upper Texas Gulf Coast and in central Louisiana during the 2013 through 2015 growing seasons to evaluate the effects of fungicides on grain sorghum growth and development when disease pressure was low or nonexistent. Azoxystrobin and flutriafol at 1.0 L/ha and pyraclostrobin at 0.78 L/ha were applied to the plants of two grain sorghum hybrids (DKS 54-00, DKS 53-67) at 25% bloom and compared with the nontreated check for leaf chlorophyll content, leaf temperature, and plant lodging during the growing season as well as grain mold, test weight, yield, and nitrogen and protein content of the harvested grain. The application of a fungicide had no effect on any of the variables tested with grain sorghum hybrid responses noted. DKS 53-67 produced higher yield, greater test weight, higher percent protein, and N than DKS 54-00. Results of this study indicate that the application of a fungicide when little or no disease is present does not promote overall plant health or increase yield

Texas Plant Diseases Handbook: Chemical Control Supplement for Vegetables.

76 p