Among them use of chemosterilants
, biocides, allele chemicals, insect growth regulators and plant origin substances are growing up [9-10].
As a consequence, some authors have even proposed the use of certain PGRs as successful chemosterilants
against insect pests (Kaur and Rup, 2002; Paulson et al., 2005; Abdellaoui et al., 2013).
: These are chemicals which affect reproductive system of pest and make them sterile.
The antis will cite safety issues and suggest the use of chemosterilants
. Because urban bowhunts have stringent regulations, there has never been a bow shooting-related accident in any of the thousands of such hunts in the United States, and the use of chemicals to sterilize does does not work except in very small, fenced enclosures.
When a mixture of carbohydrate-based surfactants is applied to the surface of the fertilizer particles, not only do the fertilizer's properties improve, but also the activities of soil bacteria such as herbicides, insecticides, chemosterilants
, nematicides, and fungicides increase .
Repellents and chemosterilants
provide with a better respite against the bird depredations on several significant crops.