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Helicoverpa Oviposition Cage

Helicoverpa Oviposition Cage
Helicoverpa Oviposition Cage
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Product Code : ENT 118
Brand Name : Microsil
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Product Description

HELICOVERPA OVIPOSITION CAGE

Ambient temperature and humidity are two most important considerations for the successful rearing of H armigera. These condition are all the more important for mating and oviposition. This cage offers these two conditions on electricity.

To set up the cage :

  • Place one of the rings on upper side of the cage and tei the sring roped in the flange. The ring is arrested in the flange of the cage.
  • One SS tray is to be placed inside the cage at the bottom.
  • Loosen the nut of the stand and arrange the three leg at 120° and then tighten the nut.
  • Hang the cage by the loop in the spur.
  • Place pupae or introduce adults and their food through the slit.
  • Pour approximately 500 ml. water in the other tray and keep the cage in it. Usedistilled water if the tap water is brackish. The water will keep the cage cloth wet up to about 20 cm.
  • The evaporation from the cage will cause cooling and keep the inside of the cage at about 27°c. The moisture will also maintain the cage RH above 70% thus providing the conditions ideal for mating and oviposition.
  • After the egg laying is over remove the adults and food container. Remove the cage from the stand and then remove the ring. Take out the SS tray carefully and dip it in bucket of water. Turn cage-cover inside out and dip it in the same water bucket for 10 minutes. Shake the cloth inside water so as to dislodge the eggs from the cloth surface.
  • Decant the floating scales, wings and other debris. Collect the eggs in the strainer.
  • Should you need to know number of eggs; transfer the eggs inthe strainer.
  • Stir the content and pipette out 10 ml and hold the pipette horizontally. Count the number of eggs in the pipette. Repeat the process twice and take out mean of three observations.
Calculate the number of total number of eggs based on the quantity of water in the beaker.
  • for winter
  • for summer

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