Mustard insects A Lecture By Mr Allah Dad Khan

Mustard insects A Lecture By Mr Allah Dad Khan

1. Mustard Crop Insects A Presentation To IPM Course/FFS Participants By Mr. Allah Dad Khan Provincial Coordinator IPM KPK For MINFAL Pakistan

2. Mustard Insects Crop: MustardScientific name:   Brassica   juncea Family : Brassicacea

3. 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:

4. : 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

5. 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

6. 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

7. 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:

8. 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:

9. 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:

10. 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:

11. 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:

12. Leaf miner:    Chromatomyia horticola ( Phytomyza atricornis ) Larva :  small, whitish maggot Identification of the pest:

13. Leaf miner:    Chromatomyia horticola ( Phytomyza atricornis ) Young maggot mines zig-zag galleries in the leaves Symptoms of damage:

14. 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:

15. 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

16. Painted bug:   Bargrada hilaris ( cruciferarum ) Adult :  Bug is black in colour with red and yellow lines Identification of the pest: