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Crop: Peanuts
Crop Overview
Peanuts are a valuable economic crop grown widely in tropical and subtropical regions across Asia, Africa, and South America. Due to their high oil content, peanuts serve as an important raw material for food, feed, and oil production. However, peanut production often faces threats from various diseases, pests, and weeds, which can severely impact yield and quality.
Common Diseases
1. Leaf Spot (Early and Late Leaf Spot)
● Pathogen: Cercospora arachidicola (Early Leaf Spot), Cercosporidium personatum (Late Leaf Spot)
● Distribution: Found in peanut-growing regions worldwide.
● Damage: Leaf spot is one of the most common foliar diseases in peanuts. Early leaf spot causes lighter spots, while late leaf spot forms darker lesions. Severe infection leads to early defoliation, reducing photosynthesis and ultimately affecting the number and size of peanut pods. Yield losses can reach up to 50%.
▼ Recommended Products
● Propiconazole 250g/L EC: Designed for leaf spot control with long-lasting protection.
● Benomyl 50% WP: A broad-spectrum fungicide that prevents further damage to the leaves.
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2. White Mold (Sclerotium Rot)
● Pathogen: Sclerotium rolfsii
● Distribution: Common in warm, humid peanut-growing regions, especially in Asia and Africa.
● Damage: White mold affects the roots and stems of peanuts, forming white, silk-like fungal threads. This leads to wilting and, in severe cases, plant death. Yield losses can be significant in heavily infected fields.
▼ Recommended Products
● Fluazinam 200g/L SC: Offers excellent control of white mold, reducing root infections.
● Carbendazim 50% WP: A general fungicide that effectively suppresses fungal diseases.
3. Rust Disease
● Pathogen: Puccinia arachidis
● Distribution: Found in peanut-growing regions globally, especially in humid climates.
● Damage: Rust forms small brown lesions on leaves, which eventually spread across the entire leaf surface, leading to premature leaf drop. Rust often occurs with leaf spot, exacerbating its effects.
▼ Recommended Products
● Chlorpyrifos 400g/L + Cypermethrin 40g/L EC: Prevents rust and controls early-stage infection.
● Flutriafol 300g/L SC: Provides long-term protection against rust.
Common Pests
1. Cotton Bollworm
● Scientific Name: Helicoverpa armigera
● Distribution: Found in peanut fields across Asia, Africa, and South America.
● Damage: Bollworm larvae feed on peanut pods, leading to damaged kernels and reduced yield quality. The pest poses a threat throughout the crop lifecycle, from seedling to maturity, with potential yield losses of up to 30%.
▼Recommended Products
● Emamectin Benzoate 5% EC: Highly effective against cotton bollworms with fast knockdown action.
● Bifenthrin 10% SC: A broad-spectrum insecticide, suitable for controlling bollworms.
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2. Peanut Root-knot Nematode
● Scientific Name: Meloidogyne arenaria
● Distribution: Found in tropical and subtropical peanut fields.
● Damage: Nematodes form galls on peanut roots, inhibiting nutrient absorption, leading to stunted growth and yellowing leaves. In severe cases, plants die, resulting in significant yield losses.
▼ Recommended Products
● Thiamethoxam 141g/L + Lambda-Cyhalothrin 106g/L SC: Effective in controlling root-knot nematodes, reducing root damage.
● Abamectin 1.8% EC: A biological pesticide for safe and efficient nematode control.
3. Aphids
● Scientific Name: Aphis craccivora
● Distribution: Found in peanut-growing regions worldwide.
● Damage: Aphids suck sap from peanut plants, causing curled leaves and stunted growth. They also transmit viral diseases, further damaging crops. Aphids reproduce quickly, leading to large-scale infestations that can devastate fields.
▼ Recommended Products
● Thiamethoxam 10% WDG: Highly effective against aphids, providing long-lasting protection.
● Cypermethrin 40g/L EC: Efficient in controlling aphids and other soft-bodied insects.
Common Weeds
1. Purple Nutsedge
● Scientific Name: Cyperus rotundus
● Distribution: Found in tropical and subtropical peanut fields.
● Damage: Purple nutsedge is one of the most aggressive perennial weeds in peanut fields. Its rhizomes spread rapidly, competing with peanuts for water, nutrients, and sunlight, leading to reduced yields.
▼Recommended Products
● Glyphosate 41% SL: A broad-spectrum herbicide that offers long-lasting control of purple nutsedge.
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2. Barnyard Grass
● Scientific Name: Echinochloa crus-galli
● Distribution: Found in peanut-growing regions worldwide.
● Damage: Barnyard grass grows rapidly, competing with peanuts for nutrients and sunlight. Its dense growth inhibits peanut root development and pod formation, significantly reducing yields if left unchecked.
▼ Recommended Products
● 2,4-D Amine 60% SL: Effective for early-stage barnyard grass control.
3. Purslane
● Scientific Name: Portulaca oleracea
● Distribution: Common in tropical and subtropical areas.
● Damage: Purslane grows quickly and spreads over large areas, inhibiting peanut growth by reducing light penetration and competing for nutrients. It's highly resilient and difficult to control without the right herbicides.
▼ Recommended Products
● Atrazine 50% WP: A broad-spectrum herbicide, effective in controlling purslane and other broadleaf weeds.
Recommended products
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Contact number: +86 19930546995
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