The place for a farmer to start grasshopper control is on his own land, and the time to start is before the hoppers hatch. Plowing and harrowing are effective in destroying eggs or in burying them so deeply that s most of the baby hoppers cannot climb to the surface. s In areas where grasshoppers are a menace, only fall-plowed, spring-plowed, or summer-fallowed Land should be seeded. Though the practice of "stubbling-in" crops may deter soil erosion, it also boosts the hopper to birth rate. Where soil erosion is likely to be a serious 1 factor, county agents, agronomists, soil conservationists, and entomologists should be consulted in developing a tillage and seeding program that will provide as much grasshopper control as is consistent with approved ts local farming methods. When farmers practice grasshopper control on their own fields, their protected crops have more time to develop enough to survive attack, their control cost is reduced, and they can apply more of their control 20 efforts on hoppers coming in from outside.

The author gives all but which of the following premises to support his argument that farmers should first practice grasshopper control on their own land?

Select ALL that apply.

A. Methods for controlling soil erosion can boost grasshopper populations
B. Plants will have more time to mature, increasing their likelihood of surviving an attack
C. Grasshoppers form local populations and do not move around