What is rice stem borers?
The yellow stem borer is a pest of deepwater rice. It is found in aquatic environments where there is continuous flooding. Second instar larvae enclose themselves in body leaf wrappings to make tubes and detach themselves from the leaf and falls onto the water surface.
What is scientific name of stem borers?
(yellow stem borer)
How do you identify rice stem borer?
Symptom of damage:
- Presence of brown coloured egg mass near leaf tip.
- Caterpillar bore into central shoot of paddy seedling and tiller, causes drying of the central shoot known as “dead heart”
- Grown up plant whole panicle becomes dried “white ear”
- Plants could be easily pulled by hand.
What is the larval period of rice stem borer?
The larva grows for a period of 40 days and pupates inside the stem in a white silken cocoon for 7-11 days. The entire life cycle lasts for 35-50 days depending upon the environment.
What do stem borer do?
Stem borers cause severe damage on plant stems particularly the destruction of the central leaves (dead-heart) and the drying of the panicle (white head). Their attack leads to significant yield losses. According to [1], the most serious pests of cereal crops in Africa include stem borers.
How many types of stem borer are there?
Chilo suppressalis
Xylotrechus quadripesMaliarpha separatella
Stemborer/Representative species
What is name of rice stem?
The yellow stem borer (YSB), Scirpophaga incertulas (Walker) (Lepidoptera: Pyralidae), is an important pest of rice, Oryza sativa L., throughout tropical Southand Southeast Asia[1]….
| Date of Transplanting / Direct Sowing | (dd/mm/yyyy) |
|---|---|
| Observed Life Stage in field as on BioFix Date | –Select Here– Egg Larva Pupa Adult |
What happens to the larvae of a rice stem borer?
The instar larvae get dispersed with the help of silken threads and wind. Then they bore into the rice stem. Generally only one larva enters a plant. The larvae feed on the internal tissues of the stem and undergo 5-6 moults.
Where are the yellow stem borers found in the world?
Scirpophaga incertulas, the yellow stem borer or rice yellow stem borer, is a species of moth of the family Crambidae. It was described by Francis Walker in 1863. It is found in Afghanistan, Nepal, north-eastern India, Sri Lanka, Bangladesh, Myanmar, Vietnam, Thailand, Malaysia, Singapore, Sumatra, Java,…
Where do you find the pink stem borer in rice?
The pink stem borer is found in upland rice, which is grown near sugarcane or related grasses. The presence of alternate hosts encourages the pink stem borer to develop, multiply and survive during winter or dry season.
What are the different types of stem borers?
Six species of stemborer attack rice. These are the yellow stemborer, white stemborer, striped stemborer , gold-fringed stemborer , dark-headed striped stemborer , and the pink stemborer . Among the stem borers, the pink stem borer is less important.