Cottong cushion scale

By Joseph

In the late 1,800 disaster struck California’s lemon and orange groves. An Australian insect called “cottong cushion scale” which almost destroyed the groves. In desperation the Californian’s fruit growers brought a special ladybug from Australia. It worked. In less than two years the destructive scale was checked and the grove were saved. Biological Control of pests continued to grow using predators, parasites and diseases which were used to control the pest. Radiation and chemicals which are used so that they are not able to reproduce. Successfully used in the 1950’s biological control on screwworms this saved many livestock in the southeastern UNITED STATES OF AMERICA.