Edge core
Follow Us
Find Edge India Agrotech on TwitterFind Edge India Agrotech on FacebookFind Edge India Agrotech on YouTubeFind Edge India Agrotech on MySpaceFind Edge India Agrotech on LinkedIn
Edge India Group
Latest Snippets

Evolution and InnovationSave Biodiversity...Rise


Crop: Chrysanthemum

S.N: Dendranthema grandiflora

Family: Asteraceae



1. Chrysanthemum aphid, Macrosiphoniella sanborniMyzus persicae

Symptoms of damage

  • Nymphs and adults suck the sap from under surface of leaves and terminal shoots.
  • Stunted growth of the plant
  • Curling of leaf
  • Withering of flowers.
Green peach aphids on underside of a leaf


Identification of the pest

  • Aphids are black (or) chocolate brown in colouR
Winged adult



  • Aqueous spray application of Vercillium lecanii (Vertilec) @ 15 g/lit (108 CFU/g)
  • Application (ultra low volume) of the entomogenous fungus V.lecanii
  • Neem formulations can be used in rotation with regular insecticides
  • Spray any following insecticides malathion 50 EC @ 1 ml/l of water,



2. Thrips, Microcephalothrips abdominalis


Symptoms of damage

  • Infest the flower heads.
  • Lacerating the sepals and petals causing abrasions
  • Heavy infestation - damage to corolla, stamens
  • leading to premature flower drop.
  • It transmits the tomato spotted wilt virus, necrotic spot virus to many floricultural crops. 

Identification of the pest

  • Adult - slender, white to black in colour

Damaged leaves by thrips


  • Grow resistant varieties like
  • Chandrika, Bangalore Local Yellow Double, M-7, Pankaj and Yellow Star.
  • Field sanitation. 
  • Remove weeds that harbour virus from inside and outside the greenhouse.
  • Yellow or blue sticky traps can be used for mass trapping of thrips.
  • Blue traps - more effective for mass trapping than yellow traps.
  • Release of nymphs and adults of predatory minute pirate bug, Orius insidiosus.
  • Spray dimethoate 30 EC @ 1 ml/litre or fenitrothion 50 EC @ 1.0 ml/litre malathion 50 EC @ 2 ml/litre
  • Application of spinosad very effective against thrips .


3. Mirid bug, Creontiades pallidifer 

Symptoms of damage

  • Nymphs and adults suck the sap from the tender portions of the plant and leaves

Identification of the pest

  • Adult - greenish yellow in colour with transparent light brown wings.

Management of sucking pest

  • Collect and destroy damaged leaves and buds
  • Spray dimethoate 25 EC at 1.5 ml/lit or malathion 2ml/lit.


4. Flower feeder, Helicoverpa armigera   

Symptoms of damage   

  • Caterpillars feed on buds and flowers.

Identification of the pest

  • Young caterpillar – yellowish white and gradually green in colour
  • Adult – medium sized, light brown and V shaped speck on the fore wings
  • Male – fore wings are green in colour
  • Female – fore wings are brown in colour




  • Field sanitation
  • Collect and destroy damaged buds and flowers
  • Set up pheromone traps with Helilure at 15/ha
  • Spray nuclear polyhedrosis virus (Ha NPV) at 500 LE or 1.5*1012 POBs/ha
  • Encourage the activity of parasitoids campoletis and chelonus
  • Spray carbaryl 50 WP 2g/lit.
Edge Gallery

The Silent Killer......

Organic Streams.....

arth Day....

Fungus can save the world