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Eradication of pests



Chemical approach


Application of pesticides directly to infested wood is a less certain option, which, if effective, requires up to a year or more to achieve control.


There is no environmentally approved chemical product to do what you want. Chemical products seldom kill the worms in the wood, because they do not penetrate deep in the wood. Gas under pressure is the only thing that can reach them. Chemical approach merely kills the beetles as they leave the wood; as a result, there will be no reinfestation. At the best luck, chemicals could successfully kill the worm, since worm tunnels sometimes cut across old tunnels of exited worms and this will give a toxic path to the active worm. If you want to kill the worm with no luck, you must be prepared to a long-term battle with only one winner, and it is not need to be you. It is hard to determine 2-D location of the worm, since sound could come through tunnels to surface disfigured and you should also to determine the depth of the worm. You will have to drill a pretty large area of the wood but the worm would still play its melody. Maybe you cannot afford to drill surface of the wood because of aesthetic reason or static reason.


Householders who had applied timber treatment chemicals in their homes, or whose homes had been professionally treated, also experienced unusual symptoms. These included sore eyes, nose and throat, coughing and sneezing, headaches, nausea, skin rashes and lethargy. In some extreme cases victims suffered spasms, which were diagnosed as epilepsy, and others developed rare cancers and blood diseases. Some very unfortunate cases of exposure to timber treatment pesticides have resulted in death.


Using toxic chemicals in home should be questioned and alternatives sought. A 1998 occupational study on a male workforce involved in wood preservation suggested that chlorophenol exposure might increase the risk of soft tissue sarcoma. There was an increased risk of non-Hodgkin's lymphoma associated with chlorophenate wood preservative exposure among sawmill workers. Results from a study in Germany that investigated the adverse effects of wood preservatives used in daycare centres showed a significantly reduced birth weight and length in the offspring of females exposed to non-pesticide organochlorines, pentachlorophenol (PCP), lindane and indicated that a toxic effect might have effected the foetus. Some of the newest items in the pest control are the boric acid products. These are available as liquid concentrates and water-soluble powders for application to the surface of wood. Borates penetrate wood very slowly and are persistent, non-volatile compounds that inhibit local infestation of all wood-destroying organisms.


The commercially available chemicals are all toxic to humans and to animals to one degree or another. Some have been clearly identified as causing serious long-term health effects including cancer and reproductive problems. However, their correct and safe use in accordance with label instructions and legal requirements should not normally endanger the health of people or non-target animals.