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Production · Protection · Nutrients · Water
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1,513 crop protection pages, pest and disease by crop•98 crops tagged — rice, cotton, sugarcane, mango and more•261 nutrient management pages, deficiency symptoms and correction measures•3,462 data tables preserved from the source pages

Symptoms of damage:

Mustard
Mustard saw fly: Athalia lugens proxima
Symptoms of damage: 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
Identification of the pest: 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
Management: Summer ploughing to destroy the pupa Early sowing should be done Maintain clean cultivation Apply irrigation in seedling stage is very crucial for sawfly management because most of the larvae die due to drowning effect. Severe cold reduces pest load. Collection and destruction of grubs of saw fly in morning and evening Conserve Perilissus cingulator (parasitoids of the grubs), and the bacterium Serratia marcescens which infect the larvae of sawfly Use of bitter gourd seed oil emulsion as on anti- feedant Spray the crop with malathion 50 EC @ 1000 ml/ha quinolphos 25 EC @ 625ml/ha. All this should be applied in about 600 to 700 litres of water per ha.
  • 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

Identification of the pest:

  • 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

Management:

  • Summer ploughing to destroy the pupa
  • Early sowing should be done
  • Maintain clean cultivation
  • Apply irrigation in seedling stage is very crucial for sawfly management because most of the larvae die due to drowning effect. Severe cold reduces pest load.
  • Collection and destruction of grubs of saw fly in morning and evening
  • Conserve Perilissus cingulator (parasitoids of the grubs), and the bacterium Serratia marcescens which infect the larvae of sawfly
  • Use of bitter gourd seed oil emulsion as on anti- feedant
  • Spray the crop with malathion 50 EC @ 1000 ml/ha quinolphos 25 EC @ 625ml/ha. All this should be applied in about 600 to 700 litres of water per ha.