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
Chemical hazard evidence that workplace exposure to lead, carbon disulphide, or phenoxyacids containing TCDD, as well as working in an environment where aluminium is being electrolytically produced, are associated with stroke. Chemical hazard A chemical hazard is a type of occupational hazard caused by exposure to chemicals in the workplace. Exposure to chemicals in the workplace can cause acute or long-term detrimental health effects. There are many types of hazardous chemicals, including neurotoxins, immune agents, dermatologic agents, carcinogens, reproductive toxins, systemic toxins, asthmagens, pneumoconiotic agents, and sensitizers. These hazards can cause physical and/or health risks. Depending on chemical, the hazards involved may