A New Method For Handling Insect Eggs

Extract

Occasions frequently arise in entomological work when it is necessary to handle large numbers of insect eggs. If the eggs are to be counted or treated, it is often necessary that they be held in a fixed position. A technique has been devised at the Ottawa laboratory by which many eggs can be handled and held with great ease. The eggs to be treated are placed on a sheet of Saran Wrap (Dow Chemical Company, Midland, Mich.). The static charge on the plastic is strong ennugh to hold the eggs securely. After treatment the eggs can be removed by means of a moist brush. This method is ideal for topical application studies and, if the Saran Wrap is backed with aluminum foil, it may be used to make excellent micro weighing dishes with adhesive qualities.