Pine processionary by predators, parasites and viruses which attack the moth at different stages of its life-cycle: Efforts to control the pine processionary have included biological control using "Bacillus thuringiensis", which is effective on eggs and first or second stage caterpillars (in September or October), or insecticides such as diflubenzuron, an insect growth regulator, which can be sprayed from aircraft. Monitoring can include the use of pheromone traps. Older methods used insecticides in oil, inserted directly into nests, or mechanical removal of nests. Pine processionary The pine processionary ("Thaumetopoea pityocampa") is a moth of the family Thaumetopoeidae. Sometimes placed in the genus
Moral hazard it were fully exposed to the risk. According to contract theory, moral hazard results from a situation in which a "hidden action" occurs. Bengt Holmström said this: Moral hazard can be divided into two types when it involves asymmetric information (or lack of verifiability) of the outcome of a random event. An "ex-ante" moral hazard is a change in behavior prior to the outcome of the random event, whereas "ex-post" involves behavior after the outcome. For example, in the case of a health insurance company insuring an individual during a specific time-period, the final health of the individual can be