Pigeonpea is a preferred host to adult blister beetle (Mylabris pustulata). Early pigeonpea, which is sown during May 15-June 15 in North West and north east plains of India, enters into flowering stage during September. Adults of blister beetle trip at this stage in large number, each feeds on 100-200 flowers, and results in huge economic loss to farmers. Effective and economic measures for preventing such a loss at field level are highly desired.
The adult pests feed on flowers and reduce the number of pods that are set. On the site where peas grow over large areas, pustule beetles cause minimal damage. However, in young pea plots that are in the flowering phase during the period of peak adult activity, beetles can eat most of the flowers, and crop losses may be significant. The larvae do not feed on plants but rather live in the soil. So, what can we do to control this pest? The adult beetles can be handpicked and destroyed. However, care should be taken, since when disturbed, they can release a liquid that burns the skin (wear gloves to protect the hands). Many types of essential oils extracted from eucalyptus and aromatic herbs can have repellent effects (phytotoxic side effects are possible). In addition, rock powder or clay powder (kaolin) could have a repellent effect on these beetles. Most insecticides are not very effective against these beetles, but synthetic pyrethroids such as cypermethrin 10 EC @1.0 ml/l or lamda cyhalothrin 5 EC @ 1.0 ml/l work reasonably well. Since the larvae are beneficial, the aim should not be to destroy all adults but to keep the numbers in check. https://infonet-biovision.org/PlantHealth/Crops/Pigeon-pea
https://www.ncipm.res.in/NCIPMPDFs/publish/PestofPigeonpea.pdf
Blister beetle is very damaging insect of pigeonpea. Major damage is caused at flowering stage. It feeds on tender buds and flowers and prevent pod formation that results into huge yield losses. It can be successfully controlled by using indoxacarb @500 ml per ha in about 500 litres of water.
Dear Arbind K. Choudhary
We use the drug "Yurax".
The active ingredient is cypermethrin - 25% solution
Regard, Pushkin Sergey Viktorovich
Sir, all I can say is try to change the brand of insecticide from time to time once used because this will help to slow down their reproduction.
Pigeon pea is an important leguminous crop. Its production is greatly hampered by attack of insect pests during its vegetative and reproductive stages. The blister beetle, Mylabris pastulata, during the flowering stage feeds on the flowers, thereby reducing the numbers of pod setting, hence affecting crop yield and causing great economic loss. To prevent substantial economic loss, this insect pest can be controlled by spraying the plant with synthetic pyrethroid, Cypermethrin @ 1ml/l water, which protects the crop from beetle damage, and manually collecting the beetles with the help of insect nets and destroying them.
Thank you @ Pushkin, @Janine and @Munira for adding useful answers.
The adult pests feed on flowers and reduce the number of pods that are set. On the site where peas grow over large areas, pustule beetles cause minimal damage. However, in young pea plots that are in the flowering phase during the period of peak adult activity, beetles can eat most of the flowers, and crop losses may be significant. The larvae do not feed on plants but rather live in the soil. So, what can we do to control this pest? The adult beetles can be handpicked and destroyed. However, care should be taken, since when disturbed, they can release a liquid that burns the skin (wear gloves to protect the hands). Many types of essential oils extracted from eucalyptus and aromatic herbs can have repellent effects (phytotoxic side effects are possible). In addition, rock powder or clay powder (kaolin) could have a repellent effect on these beetles. Most insecticides are not very effective against these beetles, but synthetic pyrethroids such as cypermethrin 10 EC @1.0 ml/l or lamda cyhalothrin 5 EC @ 1.0 ml/l work reasonably well. Since the larvae are beneficial, the aim should not be to destroy all adults but to keep the numbers in check. https://infonet-biovision.org/PlantHealth/Crops/Pigeon-pea
https://www.ncipm.res.in/NCIPMPDFs/publish/PestofPigeonpea.pdf
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