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19
Jul

Control of Whitebacked planthopper

1.Draining rice fields can be effective in reducing initial infestation levels. The field should be drained for 3 - 4 days when heavy infestations occur.

2. Provide alley ways in the main field. For provision of alley ways leave 30 cm gap after every 2m planting in main field.

3. Egg parasitoids: Anagrus sp, Gonatocerus sp., Oligosita spp.

Nymphal/adult parasitoids: Haplogonatopus sp., Ecthrodelphax fairchildii., Elenchus sp (Sterpsiptera), Hexamermis sp (Mermithid).

19
Jul

Life stages of Whitebacked Planthopper

1. Egg: Cylindrical eggs are laid in groups when the rice plant is small but in the upper part of the rice plant when the plant is large. (They are laid with the micropylar end protruding from the tissue, the operculum is long and narrow. The eggs in a group are not sealed together by the material secreted by female.)

2. Nymph: White to a strongly mottled dark grey or black and white in colour and 0.6 mm size when young. Fifth instar nymph with a narr

19
Jul

Symptoms and Nature of damage of Whitebacked Plant hopper

Symptom of attack of Whitebacked planthopper:

1. Heavy infestation cause outer leaves of a hill to show burn symptoms.

2. Damage in the form of hopperburn appears uniformly in a rice field, whereas it appears as circular patches in the case of BPH.

Nature of damage of Whitebacked planthopper

19
Jul

Whitebacked Planthopper

Order: Hemiptera

Family : Delphacidae

Scientific name : Sogatella furcifera

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