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Sugarcane mosaic virus in sugarcane

SCMV (Potyvirus group) Mosaic of Abaca, Gannay ka pich rangi virus in Urdu language
  • Use resistant varieties like CPF-248, Kahy, Lalri, and US 778.
  • Avoid ratooning especially with likely infected planting material.
  • Avoid maize and sorghum in surroundings or as alternate crops because they are good hosts for aphid vectors of SCMV i.e. green peach aphid (Myzus persicae).
  • Plant two weeks earlier to avoid coinciding with aphid vectors, but only helpful in isolated fields.
  • Monitor from 5 to 6 leaves stage to 1 month before harvest
  • Look for mosaic (alternate dark and light green patches of varying size and run parallel to the midrib of leaf) on basal portion of young leaves every 3 to 4 days
  • Yellow uneven stripes are visible against light.
  • Act immediately against vectors when symptoms are visible on young plants.
  • Yellow areas on leaves expands with time and leaf sheaths become infected.
  • Severe attack results in stunting.
  • Inspect for aphid vectors of SCMV like cotton aphid (Aphis gossypii), green peach aphid, etc. Take action if 5-15% of the observed plants are infested with 5 - 10 aphids on average.
  • Release predators of aphids like midge-larvae (Aphidoletes aphidimyza). Use 3000 midges per week per acre 2-4 times. Release midges in evening/night.
  • Release green lacewing (Chrysoperla carnea) at the rate of 10 cards per hectare against aphid vectors. Hang the lacewing containing cards in the evening. Repeat this weekly with new cards 5 – 6 times. Start using these cards in early March and in surroundings with aphid hot spots. Mix C. carnea with A. aphidimyza to increase the efficacy of both biological control agents.
  • In small fields, use water ground traps with sugar and a bit of soap to reduce ants because they carry aphids with SCMV from one plant to next.
  • All chemicals here are to control the aphid vectors. There are no chemical viricides against SCMV. When plants are infected action is too late
  • When using a chemical or botanical pesticide, always wear protective clothing and follow the instructions on the product label.
  • WHO toxicity class II products may not be allowed in local IPM schemes.
  • Always consult recent list of registered pesticides of Pakistan.
  • Pymetrozine - products (for example Plenum®). Usually applied at 250g/acre (aerial application). But double-check product labels. Pyridine group with systemic activity.
  • WHO toxicity class III-slightly hazardous. Restricted re-entry interval r.e.i. 12 hours. Pre-harvest interval p.h.i. 14 days.), max 2 repeats with minimum 30 day interval. Toxic to parasitoids but less toxic to other beneficial insects, bees, soil and aquatic organisms.
  • Bifenthrin - products; (for example Curator®) Usually applied at 125-150 ml/ acre, but double-check product labels. Pyrethroid with contact activity.
  • WHO toxicity class II moderately hazardous. Toxic to fish and aquatic organisms and can be toxic to bees. Pre-harvest interval p.h.i. 7 days; restricted re-entry interval r.e.i.1 day.
  • Chlorpyrifos - products (for example Akofos ®). Usually applied at 250 ml/acre, but double-check product labels. Organophosphates with contact activity.
  • WHO toxicity class II moderately hazardous. Toxic to most of beneficial insects, bees, soil microbes and aquatic organisms. Pre-harvest interval p.h.i. 30 days; restricted re-entry interval r.e.i. 3 days
AUTHOR(S): Ahmed Raza, Tahir Farooq, (Institute of Plant Protection, Graduate School of CAAS, Beijing, China) phone +86-13121767637 email:

CREATED/UPDATED: February 2017
PRODUCED BY: Plantwise

©CAB International. Published under a CC-BY-SA 4.0 licence.