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19
Jul

Management of Rice Mealy bug

Management of Rice Mealy bug

Management of rice mealy bug includes

  • cultural,
  • biological and
  • chemical methods.

Chemical control of Rice Mealy bug  

  • The waxy secretion covering the mealybugs and their habit of living behind leaf sheaths protect them from insecticide.
  • Foliar sprays are effective, however,
19
Jul

Nature of damage and symptoms of Rice Mealy bug

Nature of damage and symptoms of Rice Mealy bug

1. The mealy bug population can be easily noticed in the field by a distinct waxy and powdery coating and also by the presence of ants on the mealy bug infested plants.

2. Adults and nymphs suck sap from the plant stem resulting in stunted plant growth and yellowish curved leaves.

3. Under heavy infestation, individual pl

19
Jul

Bioecology of Rice Mealy Bug

Bioecology of Rice Mealy Bug

1. The bugs reproduce by ovipary and by parthenogenetic vivipary.

2. Eggs are laid and nymphs emerge concurrently and are covered by a distinct waxy and powdery coating.

3. The nymphs remain in immobile positions between the leaf sheaths and stem.

4. Ants frequently visit the mealy bug infested plants and are also found to carry the b

19
Jul

Host range of Rice Mealy bug

Host range of Rice Mealy bug

The host range of Rice Mealy Bugs are:

  • Rice,
  • Cynodon dactylon,
  • Paspalum scrobiculatum,
  • Eleusine indica,
  • Digitaria sanguinalis and
  • Fimbristylis spp.
19
Jul

Distribution of Rice Mealy Bug

Distribution of Rice Mealy Bug

  • The pest is common on plants growing in dry cultivated areas and in fields with uneven soil surface where the plants grow in relatively dry soil patches.
  • It is moderately severe in West Bengal.
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