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Plantwise Factsheets for Farmers

Mango Hopper

Idioscopus clypealis
Pakistan

Recognize the problem

The mango hopper is a major insect pest of mango. The hoppers make holes and suck the nutrients from soft tissues of panicles, leaves, flowers, fruits and fresh twigs. Hoppers also release sweet liquid onto the leaves, on which a black coloured fungus develops, which reduces the strength of the plant. Heavy attacks cause curling and drying of infested parts. If young trees experience a severe attack, they are much retarded while severely attacked older trees do not bear fruit, which results in a complete loss of yield.

Adult hoppers are brown in colour and are wedge or triangular in shape. The young ones are similar in shape to the adult but vary in size and colour. Both are very active and move sideways.

Background

Hoppers are present all year round in the orchard. Females lay eggs from February to March on flowers. Peaks in population are observed during February to April and July to August.

Management

The management of this insect pest should be largely based on cultural control rather than chemicals because it’s been found that the hoppers have become resistant to some pesticides.
  • Prune the plants so that the sunlight can pass through the canopy and aeration can be improved
  • Pruning should be done twice a year i.e. after harvesting of fruit in September and at blossom in December/January
  • No plant part or twig should intermingle with the adjacent plant
  • If population is still observed then spray imidacloprid @ 0.3ml/litre of water at early stages of panicle formation
  • Second spray with thiamethoxam @ 2g or acephate 1.5g/litre of water should be done at fruit set

When using a pesticide, always wear protective clothing and follow the instructions on the product label, such as dosage, timing of application, and pre-harvest interval.

The recommendations in this factsheet are relevant to: Pakistan

Authors: Syed Ismat Hussain
Department of Pest Warning & Quality Control of Pesticides
tel: +92-0321-6829583 email: ismatsyed@gmail.com
©CAB International. Published under a CC-BY-SA 4.0 licence.

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