Brown leaf spot rice is one of the most serious diseases that can affect a growing rice crop. It usually begins with leaf spot on young leaves and, if not treated properly, it can decrease yield substantially. 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.
-
4 Trailblazing Garden Brands To Support On Small Business Saturday And BeyondDiscover some of the most exciting independent garden brands that deserve to be championed not just on Small Business Saturday – but every day of the year.
-
Womanswork - Strong Women, Strong GlovesHave you heard of Womanswork? They're a woman-owned business that's been empowering women (and making gardening gloves) for over 35 years.
-
What Is Rice Sheath Blight: Treating Sheath Blight Of RiceAnyone who is growing rice needs to learn the basics about diseases that affect this grain. One particularly destructive disease is called rice sheath blight. What is rice sheath blight? What causes rice sheath blight? Click here to get answers to your questions.
-
What Is Rice Straighthead: Treating Rice With Straighthead DiseaseIn the United States, straighthead disease of rice has been a significant problem since rice crops were first grown in the early 1900s. It appears that although arsenic is partly to blame, there are other factors as well. Click here for more information.
-
Rice Leaf Smut Info – How To Treat Leaf Smut Of Rice CropsRice may not be a typical backyard garden plant, but if you live somewhere soggy, it can be a great addition. Diseases can ransack your rice paddy, though, so be aware of signs of infections like leaf smut of rice and what to do to manage or treat it. Learn more here.
-
What Is Rice Sheath Rot: How To Recognize Rice Black Sheath Rot SymptomsRice is one of the most important crops in the world. So when rice has a disease, it is serious business. Such is the problem with sheath rot of rice. What is rice sheath rot? Click here for diagnostic information and advice on treating rice sheath rot in the garden.
-
Rice Bacterial Leaf Blight Control: Treating Rice With Bacterial Leaf Blight DiseaseBacterial leaf blight in rice is a serious disease that, at its peak, can cause losses of up to 75%. In order to effectively control rice with bacterial leaf blight, it is important to understand what it is, its symptoms, and the conditions that foster the disease. This article will help.
-
Kernel Smut Of Rice Crops: How To Treat Rice Kernel SmutWhether growing a field of rice crops or just a few rice plants in the garden, you may at some point come across some kernel smut of rice. What is this and how can you alleviate the problem? Click the following article to learn more.
-
Rice Stem Rot Control – A Guide To Treating Rice Stem Rot DiseaseAs yield losses continue to rise from stem rot in rice, new studies are being conducted to find effective methods of rice stem rot control and treatment. Click this article to learn what causes rice stem rot, as well as suggestions for treating rice stem rot in the garden.
-
Rice Cercospora Disease – Treating Narrow Brown Leaf Spot Of RiceRice can be grown successfully with careful planning and knowledge. However, many issues plague rice plants, leading to reduced yields, and even crop loss. One such disease, narrow brown leaf spot, remains troublesome for many growers. Click here to learn more.
