Pest Poison Adaptation In Nature

host plant resistance

For any animal to be able to survive in the wild it must have adaptive mechanisms to be able to sense and avoid chemicals and toxins that could cause them harm. In mammals, both behavioural and physiological mechanisms have been to avoid being poisoned both by humans, and by natural causes. (Poisonous plants and the like) There are Innate rejection mechanisms such as the link between bitterness and toxicity to humans, causing rejection of possibly toxic materials and protecting the body. There are then the psychological responses, such as vomiting or alterations in the digestion and processing of foods that are poisonous or toxic. Lastly there are the aversions to food that cause illness if ingested.


An example of this is the common rats in which will very readily become shy about foods they may suspect to be toxic. As a result, pest control companies have resorted to poisons in which do not provoke any sensation of illness to prevent pests becoming shy of baited foods. Although these baits kill relatively slowly through internal bleeding, there is no association with ingestion. More recently however a new, more potent type of poison has been used for rodents. This poison is known as bromethalin and attacks the central nervous system. Once again, with a sub-lethal amount of the compound, the pest has does not correlate the bait with toxicity preventing poison shyness. So why not call our Reliance Pest Control team and we can sort it out for you.