The body

of the larva

is cream

colored

and the

head is

reddish

brown.

The pupa is

yellowish white with

a tinge of green. It

turns dark brown just

before adult

emergence. The

pupal stage takes

place inside the

stem, and often

below the soil

surface.

FEMALE V/S MALE

The female YSB moth has a pair of black spots at the middle of each whitish, light brown to yellowish forewing. It has a wingspan of 24-36 mm. Its abdomen is wide with tufts of yellowish hairs all over.

The male, gray or light brown in color, is smaller and has two rows of black spots at the tip of the forewings. It has a wingspan of about 20-30 mm. Its abdomen is slender toward its anal end and is covered with thin hairs dorsally

Yello rice stem borer is..... pest of deepwater rice.

found in aquatic environments

continuous flooding.

High nitrogenous field favors population buildup of the stem

borers.

Fields planted later favors more damage by the insect pest that

have built up in fields that have been planted earlier.

Stubble that remains in the field can harbor stem borer larvae and

or pupae.

Stemborers feed on the crop during the vegetative

and reproductive stages of the rice plant.

Excessive boring through the sheath can destroy the

crop.

Second instar larvae enclose themselves in body leaf

wrappings to make tubes and detach themselves

from the leaf and falls onto the water surface. They

attach themselves to the tiller and bore into the stem.

DRYING OF THE CENTER TILLER

Deadhearts or dead tiller that

can be easily pulled from the

base during the vegetative

stages

Whiteheads during reproductive

stage where the emerging

panicles are whitish and unfilled

or empty

Tiny holes on the stems and

tillers

Frass or fecal matters inside the

damaged stems

The young rice crop can be visually inspected for deadhearts in the vegetative stages and whiteheads in reproductive stages. Stems can be pulled and dissected for larvae and pupae for confirmation of stem borer damage.

Control

Carbofuran

@ 8-10 kg/Acre

Cartap

.

Thanks

4

Patience