Plant Protection
Rice Weed Management
Rice barnyard grass

Barnyard grass (E. crusgalli) Synonyms:
Barnyard millet, Common barnyard grass, Water grass

The stem is flat and erect with roots at its nodes. The leaves are linear with a broad round base narrowing at the tip. The flower head is reddish, purplish, pinkish or greenish. The seed head is windmill-shaped and the seeds are short with stiff awns. The plant can grow up to 2 m tall. It completes its development in 42-64 days. Each plant can produce up to 40,000 seeds. The young weeds resemble rice seedlings and they are often transplanted by mistake.

Junglerice (E. colona) Synonym: Awnless barnyard grass; Jungle grass
The stem is reddish-purple or green with a reddish base. The leaves are linear with the basal often giving off a red coloration. The flowers are green to purple and are found throughout the year. Each plant can produce up to 42,000 seeds. Like the other species, the seedling looks like rice seedling and are often transplanted by mistake. As the name implies, the seeds are without awns. 


rice barnyard grass

Studies show that a single barnyard grass per square foot can reduce rice yields by about 25%, and 25 barnyard grasses per square meter can cause about 50% yield loss. The mature plant grows higher than rice, so that it competes for sunlight, besides soil nutrients. It is also an alternate host for tungro and rice yellow dwarf viruses.

Chemical control: Oxyfluorfen.Bispyribac-sodium,cyhalofop-butyl.

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Keywords:Organic Silicone Agricultural Additive, Polyether Modified Trisiloxane, Organic Silicone Surface Agent, Wetter, Spray Regulator, Pests, Rice, Rice Weevil,
Aggregate Sheath Spot Of Rice, Piricularia Leaf Spot Of Rice, Brown Spot, Bipolaris Oryzae, Panicle Mite, Cockspur Grass, Cyperus Difformis, Forb Steppe,
Banded Sclerotial Blight, Tea, Tea Mosquito Bug, Helopeltis Antonii, Empoasca Flavescens, Tea Green Leafhopper, Tea Tortrix-Caterpillar,
Homona Coffearia, Tea Flush Worm, Cydia Leucostoma, Scarlet Tea Mite, Brevipalpus Phoenicis, Soybean, Phytophthora, Rhizoctonia,
Soybean Aphids, Fusarium Wilt, Wheat, Wheat Aphids, Armyworms On Wheat, Greenbugs, Cereal Leaf Beetle,
Wheat Stripe And Stem Rust, Corn, Root-Knot Nematode, Gray Leaf Spot, Northern Corn Leaf Blight,
Sweet Corn Rust, Aspergillus Flavus, Aspergillus Ear Rot