no data
Crop: barley
barley Overview
Common diseases, pests and weeds of barley crops and their impacts and corresponding prevention and control measures
Common Diseases
Common diseases and their impacts and prevention and control methods
1. Barley stripe rust
● Impact: Stripe rust is a fungal disease caused by rust fungi, which mainly affects the leaves of barley, resulting in impaired photosynthesis, premature aging of plants, and a significant reduction in yield in severe cases.
● Symptoms: Yellow stripe rust spots appear on the leaves, which expand over time to form rust spore piles.
● Prevention and control measures: Use carbendazim and triazole fungicides (such as tebuconazole and difenoconazole) for prevention and control, and use disease-resistant varieties at the same time.
2. Barley powdery mildew
● Impact: Powdery mildew mainly infects barley leaves and stems, resulting in obstructed photosynthesis, affecting plant growth and development, and ultimately leading to a decrease in yield.
● Symptoms: White powdery mildew spots appear on leaves and stems, gradually expanding and turning gray or brown.
● Prevention and control measures: Use triazole fungicides and sulfur preparations for prevention and control, and spray foliar fertilizers in a timely manner to enhance the disease resistance of plants.
no data
3. Barley Fusarium head blight
● Impact: Fusarium head blight often breaks out in humid weather conditions, mainly affecting the ear of barley, causing the grains to mold, become lighter, and even produce toxic substances.
● Symptoms: A pink mold layer appears on the ear of barley, and the grains rot and shrunken.
● Prevention and control measures: Spray fungicides such as tebuconazole and carbendazim during the heading period, and be careful to avoid rain during the harvest period.
4. Barley leaf spot
● Impact: Leaf spot affects barley leaves, destroys photosynthesis, causes poor plant growth, and ultimately reduces yield.
● Symptoms: Brown or black spots appear on the leaves, gradually expanding into irregular patches.
● Prevention and control measures: Use fungicides such as propiconazole and mancozeb.
5. Barley web spot
● Impact: Web spot is prone to occur under humid conditions, affecting barley leaves, hindering photosynthesis and causing premature aging of the plant.
● Symptoms: Net-like black stripes appear on the leaves, gradually extending to the entire leaf.
● Prevention and control measures: Use fungicides such as mancozeb and thiophanate-methyl.
Common Pests
Common pests and their effects and prevention methods
1. Barley aphids
● Effects: Barley aphids suck the juice of barley, causing plant growth stagnation and yellowing, and can spread viral diseases, which can lead to a decrease in yield in severe cases.
● Hazard symptoms: Leaves curl and turn yellow, plants grow short, and grains are poorly developed.
● Prevention and control measures: Use insecticides such as imidacloprid, acetamiprid, and thiamethoxam.
2. Barley sawfly
● Effects: Barley sawfly larvae eat barley leaves, reduce the photosynthesis area, affect the normal development of the plant, and cause the grains to be unfull.
● Hazard symptoms: Leaves are eaten, leaving irregular defects, and in severe cases, the entire plant dies.
● Prevention and control measures: Use insecticides such as chlorantraniliprole and cyanamide.
no data
3. Barley flea beetle
● Impact: Flea beetles mainly feed on barley leaves and seedlings, causing holes in the leaves, affecting the photosynthesis and normal growth of barley.
● Damage symptoms: A large number of small holes appear on the leaves, and the growth of the plants is hindered.
● Prevention and control measures: Use insecticides such as avermectin and fipronil.
4. Barley ear aphid
● Impact: Ear aphids suck the juice from the ear, affecting the development of the grains, resulting in unfull grains and reduced yields.
● Damage symptoms: The ear turns yellow and the grains shrivel, affecting the quality and yield.
● Prevention and control measures: Use insecticides such as imidacloprid, acetamiprid, and thiamethoxam.
5. Underground pests (grubs, cutworms, etc.)
● Impact: Underground pests feed on the roots of barley, causing poor plant growth, root damage, and even plant death in severe cases.
● Damage symptoms: Plant lodging, root damage, and slow growth.
● Control measures: Use chlorpyrifos, phoxim, etc. for soil treatment or seed treatment.
Common Weeds
Common weeds, their effects and control methods
1. Alopecuroides
● Effects: Alopecuroides is a fast-growing weed that competes with barley for water and nutrients, affects the photosynthesis of barley, and causes poor plant growth.
● Hazard manifestations: Barley plants are dwarfed, grow slowly, and have reduced yields.
● Control measures: Use selective herbicides such as clodinafop-butyl and foramsulfuron.
2. Wild oats
● Effects: Wild oats grow rapidly and can compete with barley for water and nutrients, affecting the normal growth of barley. In severe cases, the yield is significantly reduced.
● Hazard manifestations: Barley growth slows down, weeds grow excessively, and cover the field.
● Control measures: Use herbicides such as pendimethalin and fenoxaprop-butyl.
no data
3. Aesculus tauschii
● Effects: Aesculus tauschii is a stubborn weed that competes with barley for light and nutrients, affects photosynthesis, and causes the barley to grow weakly.
● Damage manifestation: Barley plants are weak and weeds spread, seriously affecting yields.
● Prevention and control measures: Use herbicides such as fenoxam-butyl and clodinafop-butyl.
4. Galium
● Impact: Galium is a common weed that competes with barley for water and nutrients, causing slow plant growth, and in severe cases, significantly reducing yields.
● Damage manifestation: Weeds grow in the field, inhibiting the photosynthesis and normal development of barley.
● Prevention and control measures: Use selective herbicides such as foramsulfuron.
5. Wheatgrass
● Impact: Wheatgrass is a common grass weed that competes with barley for nutrients, causing poor plant development and affecting yields.
● Damage manifestation: Weeds grow rapidly, affecting the photosynthesis and growth and development of barley, and in severe cases, causing a significant reduction in yields.
● Prevention and control measures: Use herbicides such as fomesafen and clodinafop-butyl.
Recommended products
We are mainly deals with insecticides, fungicides, herbicides, seed dressings, plant growth regulators and agrochemicals.
Contact Us
Have questions or specific needs? Fill out the form below to get in touch with us. Our team will respond promptly with tailored solutions for your business.
Contact person: John Jiang
Contact number: +86 19930546995
Email: info@pomais.com
WhatsApp: +86 19930546995
Company address: 1908 West Tower, Baichuan Building, 138 Jianbei Street, Chang 'an District, Shijiazhuang City, Hebei Province, China