Which is also called As spotted stalk borer or pink borer?

Which is also called As spotted stalk borer or pink borer?

Chilo partellus, the spotted stalk borer or spotted stem borer, is a moth in the family Crambidae.
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What is the scientific name of stem borer?

Scirpophaga incertulas

Which of the following pest causes dead heart in crops?

Stem borers

How it Kills: Stem borers are caterpillars that eventually turn into yellow or brown moths. Larva feeds inside the stem causing drying of the central shoot called dead heart in young plant or drying of the panicle called ‘white ear’ in older plants.

Which insecticide is best for stem borer?

Of the granular insecticides, furadan application proved to be the best both in controlling the attack of stem borer and leaf folder as well as better yield per acre, while among sprayable insecticides, nurelle-D proved better for the control of these pests.

How do you control stem borers?

How to manage

1. Use resistant varieties.
2. At seedbed and transplanting, handpick and destroy egg masses.
3. Raise level of irrigation water periodically to submerge the eggs deposited on the lower parts of the plant.
4. Before transplanting, cut the leaf-top to reduce carry-over of eggs from the seedbed to the field.

Why is it called dead heart?

Injury is often first noticed when the youngest partially unfurled leaf of the plant begins to wither and die, resulting in a condition called dead heart.

How do you control borer stems naturally?

How do you manage stem borers?

How do you prevent stem borers?

Crop rotation is the key to get rid of stem borers. Avoid planting cucurbits in the same plot, or plant cucumbers, melons or watermelons as borers hardly threaten them. Lastly, you can cut off the infected vine and cover it with additional soil for new root growth.

Which insecticide can be used for control of rice stem borer?

In 2010, six pesticides – deltamethrin, cygon, chlorpyrifos, cartap, fipronil, and esfenvalerate – gave >90% control of stem-borers, and reduced damage to less than 5.0%. In 2011, control exceeding 90% and a damage level of <5.0% and was achieved with 0.35 kg/ha deltamethrin and chlorpyrifos.

What is white ear in rice?

At early stage when larvae come out of eggs it can damage the leaf or leaf sheath and middle-growing portion. As a result, the leaves get dried, which is known as “Dead Heart”. Owing to its infestation at the time of ear-head emergence, ears get dried and turn white in color, which is known as “White Ear-Head” [1].

What are rice Whiteheads?

The appearance of whiteheads in the rice field indicates the presence of stem borer. Stem borers can destroy rice at any stage of the plant from seedling to maturity. The larvae bore at the base of the plants during the vegetative stage causes whiteheads at the reproductive stage.

What kills stem borers?

Pyrethum and malathion spray or dust is also effective in killing squash borers.

How do you avoid stem borers?

How do you treat tree borers?

Systemic insecticides applied via trunk injection, basal bark sprays, or as a soil drench are effective against flatheaded borers and they may be the only practical method for treating tall trees.

How do you control the stem borer in paddy?

What is the main symptom of stem borer?

Symptom of Damage : Presence of brown coloured egg mass near the leaf tip. In vegetative stage larva enters the stem and feeds on the growing shoot and causes drying of the central shoot known as “dead heart”.

What is the best insecticide for stem borer?

What is rice skipper?

Rice skippers are found in all rice environments. They are most abundant in rainfed rice fields. The adults are diurnal and at t nighttime, they rest. They have very fast and erratic flight movement as they skip from plant to plant. The larvae are nocturnal.

How do you control a stalk borer?

There are no rescue treatments for stalk borers once they enter the plant. In reduced tillage or weedy situations, treatment may be advisable if the cover crop or weeds in the field are infested prior to planting.

How do trees control stem borers?

Placement of Odonil inside the tunnels and closing the holes with mud proved most effective (80.45-81.55% control within 15 days of its application). The next best treatment was placement of naphthalene balls and closing the holes with mud (68.15-69.50% control).

How do you prevent borers?

Cover the plants’ stems with a barrier, such as strips of nylon stockings or aluminum foil, to prevent egg laying. Before flowers appear on the plants, use row covers to keep squash vine borers away. The covers will need to be removed for pollinators, eventually.

What product kills tree borers?

Recommend Permethrin insecticide for timber borer control due to its low toxicity profile and it’s ability to penetrate into the timber grain – Permethrin is a based on the natural of the pyrethrum plant – used to eradicate the adult beetle as it emerges from inside the timber.

How do you control rice leaf folders?

To prevent leaffolder outbreaks:

1. Use resistant varieties.
2. Follow rice with a different crop, or fallow period.
3. Avoid ratooning.
4. Flood and plow field after harvesting if possible.
5. Remove grassy weeds from fields and borders.
6. Reduce density of planting.
7. Use balanced fertilizer rates.

What is leaf folder?

Leaf folders are caterpillars of a moth. The caterpillars roll leaves around their bodies and feed inside the tube. The feeding creates a see-through or transparent area on the leaf. They feed inside the folded leaf creating longitudinal white and transparent streaks on the blade. The caterpillars are yellow to green.