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: