11/18/2023 0 Comments Blight tomatoes![]() The pathogen can also be seed-borne, Therefore seed should not be saved from diseased fruit.Ĭovering the ground with black plastic mulch, straw, or other material provides a barrier between the pathogen in the soil and fruit. A practice that can be implemented in a small garden is removing affected fruit rather than letting them drop to the ground. ![]() Not growing tomatoes or other solanaceous plants (especially potato) in the same area for 3 to 4 years is ideal. Consequently, important practices for managing anthracnose include rotating where tomatoes are grown. The spore-containing structures provide a means for the causal fungus to survive between crops. There are two slicer-type resistant tomato varieties: Chef’s Choice (red and orange). Manage anthracnose by controlling sources of the pathogen, minimizing the opportunity for dispersal of the pathogen, reducing favorability of environmental conditions for disease development, and applying fungicides. Fruit nearest to the ground are most likely to be affected. Eventually the entire fruit will rot, especially when there are several anthracnose spots or decay organisms enter the diseased tissue. These spores are dispersed to other fruit by splashing water. Masses of pink to orange colored spores are released from these structures when weather is wet or humid. The center of anthracnose spots become dark as the fungus produces spore-containing structures (microsclerotia and acervuli). ![]() They can enlarge considerably over time, and may develop concentric rings. Spots on fruit initially are small, circular, and depressed. Ripe and overripe fruit are especially susceptible but the pathogen can infect green fruit with symptoms not developing until fruit begin to ripen. One of the most common fruit rots of tomato, especially in vegetable gardens, is caused by several species of the fungus Colletotrichum.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |