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Insect pest of cotton white fly

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EhtishamAliHussain

Ehtisham Ali Hussain University College Of Agriculture, University Of Sargodha, Sargodha For more Topics Contact.., shamu.hassan.eh@gmail.com

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Agricultural insect pest Ehtisham Ali Hussain BAGF15E258 University College Of Agriculture, University Of Sargodha, Sargodha
Insect pest of cotton White fly Taxonomy Technical Name : Bemisia tabaci Family: Aleyrodidae Order : Homoptera
Identification ? Eggs Yellow-orange, minute cigar-shaped eggs laid in groups ? Nymph Nymph are pale yellow in color. Nymph are also known as crawler. Adult ? Adult are pure white in color
Life cycle ? Female lay 100-150 egg on lower side of leaf ? Hatching occur in 2 week of summer ? Nymphal period for 2 weeks with 3 nymphal instars ? Adult formed after 1 week from pupae. ? There 11 generation per year
Damage ? Nymph and adult suck cell sap from leaf which show yellowish spots. ? After cell saping leaf are dry and falls down ? Plant shows stunted growth ? Due to excess quantity of honey dew black mold grow on it.
Control Cultural control Destruction of alternate host plants and weed hosts. Avoid over irrigation in cotton field. Biological Control Predator Green lace wing and coccinellid beetle are good predator of cotton white fly.
Parsitoid ? Encarsia spp. is the parasitoid of whitefly ? Chemical control Acetamiprid SP ml / acre Imidacloprid SL 250 ml / acre

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Insect pest of cotton white fly

  • 1. Agricultural insect pest Ehtisham Ali Hussain BAGF15E258 University College Of Agriculture, University Of Sargodha, Sargodha
  • 2. Insect pest of cotton White fly Taxonomy Technical Name : Bemisia tabaci Family: Aleyrodidae Order : Homoptera
  • 3. Identification ? Eggs Yellow-orange, minute cigar-shaped eggs laid in groups ? Nymph Nymph are pale yellow in color. Nymph are also known as crawler. Adult ? Adult are pure white in color
  • 4. Life cycle ? Female lay 100-150 egg on lower side of leaf ? Hatching occur in 2 week of summer ? Nymphal period for 2 weeks with 3 nymphal instars ? Adult formed after 1 week from pupae. ? There 11 generation per year
  • 5. Damage ? Nymph and adult suck cell sap from leaf which show yellowish spots. ? After cell saping leaf are dry and falls down ? Plant shows stunted growth ? Due to excess quantity of honey dew black mold grow on it.
  • 6. Control Cultural control Destruction of alternate host plants and weed hosts. Avoid over irrigation in cotton field. Biological Control Predator Green lace wing and coccinellid beetle are good predator of cotton white fly.
  • 7. Parsitoid ? Encarsia spp. is the parasitoid of whitefly ? Chemical control Acetamiprid SP ml / acre Imidacloprid SL 250 ml / acre