What Is Rice Brown Leaf Spot – Treating Brown Spots On Rice Crops
By: Becca Badgett, Co-author of How to Grow an EMERGENCY Garden
Brown leaf spot rice is one of the most serious diseases that can affect a growing rice crop. If you’re growing a crop of rice, you’ll do well to keep an eye on the leaf spots.
About Rice with Brown Leaf Spots
Brown spots on rice can start on even seedling leaves and are usually small round to oval circles, brownish in color. It is a fungal issue, caused by Bipolaris oryzae (previously known as Helminthosporium oryzae). As the crop grows, leaf spots may change colors and vary in shape and size, but are usually round.
Spots are often a brownish red as time progresses but usually begin just as a brown spot. The spots also appear on the hull and leaf sheath. Older spots may be surrounded by a bright yellow halo. Don’t confuse with blast disease lesions, which are diamond shaped, not round, and require different treatment.
Eventually, rice kernels are infected, creating a minimal yield. Quality is affected as well. When glumes and panicle branches become infected, they often show black discoloration. This is when kernels become most thin or chalky, not filling properly and yield is largely reduced.
Treating Brown Leaf Spot of Rice
The disease develops largely in areas with high humidity and on crops planted in nutrient deficient soil. This infection occurs when leaves remain wet for 8 to 24 hours. It most often happens when the crop is planted from infected seeds or on volunteer crops, and when weeds or debris from previous crops is present. Practice good sanitation in your fields to help avoid brown leaf spot of rice and plant disease-resistant varieties.
You may also fertilize the crop, although this can take several growing seasons to work completely. Take a soil test to learn exactly which nutrients are missing in the field. Incorporate them into the soil and monitor them regularly.
You can soak seeds before planting to limit the fungal disease. Soak in hot water 10 to 12 minutes or in cold water for eight hours overnight. Treat seeds with a fungicide if you’re having problems with rice with brown leaf spots.
Now that you’ve learned what is rice brown leaf spot and how to properly treat the disease, you may increase the production and the quality of your crop.
This article was last updated on
Managing Rice With Narrow Brown Leaf Spot|TakeSeeds.com
Sustainability as well as self-direction are a typical objective amongst numerous house garden enthusiasts. The high quality as well as advantages of home-grown plants influence numerous farmers to increase their veggie spot each period. In this, some are attracted to the concept of expanding their very own grains. While some grains, like wheat as well as oats, might expand easily, many individuals pick to try expanding harder plants.
Rice, for instance, can be expanded effectively with cautious preparation as well as expertise. Several typical concerns which torment rice plants can lead to decreased returns, as well as also plant loss. One such illness, slim brownish fallen leave area, stays bothersome for numerous farmers.