The ZigZag Striped Leafhopper (Recilia dorsalis)
Scientific Name:
Recilia dorsalis
Order:
Hemiptera
Family:
Cicadellidao
Distribution:
India, Pakistan, Sri Lanka, Malaya, Vietnam, Philippines, Japan, Korea, Malaysia, Bangladesh, China and Taiwan.
Host:
Rice.
The adult is a whitish-gray hopper which has V-shaped and zig-zag brown lines on its forewings and measures 3.1 to 3.8 mm in length.
Life-cycle:
The activity of this post is noticed throughout the year in tropical areas of the world. The female lays eggs scattered on the leaf sheath or on the leaves inside the tissue with the help of her ovipositor. A female may lay upto 90 eggs during her life span of about 55 days. The incubation period is 6 days. On emergence, the nymphs feed on leaf blades. There are five nymphal instars which take about 120 days. The total developmental period from egg to adult is about 180 days.
Damage:
The nymphs and adults suck the cell sap. Tip drying and orange coloration of both the margins of leaves are typical symptoms. Older leaves show the symptoms first followed by the younger leaves. Development of sooty mould also takes place. Seedlings are killed. The leafhopper is known to be a vector of ‘rice dwarf 'and orange leaf disease. Only the female is viruliferous.
Control:
Same as mentioned under 'Brown Plant Hopper' (BPH), Nilaparvata lugens.
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