Insect outbreaks occur when new strains/species of insects are introduced into areas where they have no or very few natural enemies. However, eventually nature corrects itself; biological control agents appear and multiply in sufficient numbers to control the invaders. But this new state of equilibrium could take years, and by then, farmers would have suffered heavy losses.
The new coconut scale insect (CSI) devastating coconuts in Batangas, Laguna, Cavite and Quezon has been identified as Aspidiotus rigidus, which is different from the more common Aspidiotus destructor.
The immediate challenge to the CSI outbreak is to arrest/contain the further spread of CSI from the current adversely affected areas to the rest of the country. The idea is to reduce CSI population and slow down its spread in orderto give the time for the insects’ natural enemies to multiply.
Scale insects are naturally preyed upon by wasps,coccinelid beetles, earwigs, and lacewings,