Blister beetles can be significant pests in green gram crops, causing damage to various plant parts and potentially affecting yield. The blister beetle, also known as the oil beetle, is a type of insect belonging to the family Meloidae. They are known for their colorful bodies and the ability to release a blistering agent called cantharidin when disturbed or crushed. Blister beetles are pests of various crops, including green gram. Adult beetles primarily target flowers, buds, and pods, directly impacting pod formation and seed development. Early feeding during flowering can be particularly detrimental.
- Type of Infestation: Pest
- Common Name: Blister beetle
- Scientific Name: Mylabris phalerata
- Affected Parts Of the plant: Flowers, Leaves, and Pods
Identification:
- Blister beetles vary in size depending on the species, but they are typically 1-2 cm long.
- They have elongated, soft bodies and long antennae.
- Their colors can be bright and varied, often including black, yellow, orange, and red.
- They have prominent head capsules and large eyes.
Environmental Favorable factors for pest/Disease:
- Temperature: Blister beetles prefer warm temperatures, with 25-35°C being optimal for their development and activity. This aligns well with the typical growing season of green gram in hot regions, increasing their activity during critical stages of the crop.
- Humidity: Moderate to low humidity (30-60%) is favorable for their development and activity. While they can survive higher humidity, it can increase fungal diseases that harm larvae.
Symptoms of Pest:
- Flower and bud loss: Visible damage to flowers and buds, leaving bare stalks or chewed remnants.
- Leaf damage: Holes, ragged edges, or skeletonized leaves.
- Presence of beetles: Adult blister beetles are typically bright yellow or orange with elongated bodies.
Measures to control Green Gram Pests:
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Products |
Technical Names |
Dosages |
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Spiromesifen 22.9% Sc |
150-200 ml/acre |
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Frequently Asked Questions
Q. What is the scientific name of the blister beetle?
A. The scientific name of the blister beetle is Mylabris phalerata.
Q. What parts of the green gram plant do blister beetles affect?
A. Blister beetles primarily affect flowers, leaves, and pods of the green gram plant.
Q. What is the best temperature for blister beetle development?
A. Blister beetles thrive in warm temperatures, ideally between 25-35°C.
Q. What is the best chemical control for blister beetles?
A. For Blister beetle chemical control use product like OZIL (Spiromesifen) as per the recommended dosages.
