MUSTARD CROP INSECTS A PRESENTATION TO IPM

COURSE/FFS PARTICIPANTS BY

MR. ALLAH DAD KHAN PROVINCIAL COORDINATOR IPM KPK

FOR MINFAL PAKISTAN

MUSTARD INSECTS CROP: MUSTARDSCIENTIFIC NAME: BRASSICA JUNCEAFAMILY: BRASSICACEA

DIAMONDBACK MOTH: PLUTELLA XYLOSTELLA

Whitish patches due to scrapping of epidermal leaf tissues by young larvae

The leaves give a withered appearance but in later stages larvae bore holes in the leaves

It also bores into pods and feeds developing seed 

Symptoms of damage:

:

Larva: Yellowish green, with fine erect black hairs scattered all over the body 

Adult: Small greyish brown adult having pale whitish narrow wings with yellow inner margins. Forewings have three white triangular spots along the inner-margin, triangular markings of opposite wings appear as diamond shaped. Hind wings have a fringe of long fine hairs

Identification of the pest Adult

Diamondback moth: Plutella xylostella

LEAF WEBBER: CROCIDOLOMIA BINOTALIS

Newly hatched larvae feed initially on the chlorophyll of young leaves and later on older leaves, buds and pods, make webbings and live within

Severely attacked plants are defoliated

Seeds in the pods are eaten away

Symptoms of damage: Larva Feeding

LEAF WEBBER: CROCIDOLOMIA BINOTALIS

Identification of the pest: Larva: Pale yellowish-brown,

with a series of lateral and sub-lateral black spots and specks

Adult: Moths are yellowish-brown. Forewings have reddish-brown distinct and in distinct wavy lines and prominent white spots. Nearer to the thorax with black tuft of hair. Hind wings are white with dark brown apical area

Adult

MUSTARD SAW FLY: ATHALIA LUGENS PROXIMA

   Initially the larva nibbles

leaves, later it feeds from the margins towards the midrib

The grubs cause numerous shot holes and even riddled the entire leaves by voracious feeding

They devour the epidermis of the shoot, resulting in drying up of seedlings and failure to bear seeds in older plants

Symptoms of damage:

MUSTARD SAW FLY: ATHALIA LUGENS PROXIMA

Larva: Greenish black with wrinkled body and has eight pairs of pro-legs. On touch the larva falls to ground and feigns death

Adult: Head and thorax is black in colour, abdomen is orange colour, wings are translucent, smoky with black veins

Identification of the pest:

CABBAGE HEAD BORER: HELLULA UNDALIS

Caterpillars initially mine the leaves and make it white papery

Later they feed on leaves and bore into stems

Entrance hole is covered with silk and excreta

Symptoms of damage:

CABBAGE HEAD BORER: HELLULA UNDALIS

Larva: Pale whitish brown with 4 or 5 pinkish-brown longitudinal stripes

Adult: Moths are pale greyish-brown, suffused with reddish colour. Forewings have grey wavy lines, an apical spot and pale edged dark lunule

Identification of the pest:

MUSTARD APHID: LIPAPHIS ERYSIMI

Both nymphs and adults suck the sap from leaves, buds and pods

Curling may occur in infested leaves and at advanced stage plants may wither and die

Plants remain stunted and sooty molds grow on the honey dew excreted by the insects

The infected filed looks sickly and blighted in appearance

Symptoms of damage:

LEAF MINER:  CHROMATOMYIA HORTICOLA (PHYTOMYZA ATRICORNIS)

Larva: small, whitish maggot

Identification of the pest:

LEAF MINER:  CHROMATOMYIA HORTICOLA (PHYTOMYZA ATRICORNIS)

Young maggot mines zig-zag galleries in the leaves

Symptoms of damage:

LEAF MINER:  CHROMATOMYIA HORTICOLA (PHYTOMYZA ATRICORNIS)

Aphids: are small, soft-bodied, pearl-shaped insects that have a pair of cornicles (wax-secreting tubes) projecting out from the fifth or sixth abdominal segment.

Identification of the pest:

PAINTED BUG: BARGRADA HILARIS (CRUCIFERARUM)

: Young plants wilt

and wither as a result of the attack

Adult bugs excrete resinous substances which spoils the pods

Symptoms of damage

PAINTED BUG: BARGRADA HILARIS (CRUCIFERARUM)

Adult: Bug is black in colour with red and yellow lines

Identification of the pest: