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Insecticides from the Rainforest
The plants of the rainforest have developed many different forms of chemical protection against the estimated 30 million species of insects in tropical rainforests. These natural insecticides are found almost every where in the rainforests. Tribes in South East Asia use chemicals called rotenoids which they derive from lianas called derris on arrow tips when hunting and as fish poison. This substance can also be used to control fleas, house flies, lice, moths, and ticks. In southern Mexico, tribes build their houses using beams from a tree called tzayok. The tzayok beams release chemicals that are harmless to people, but deadly to cockroaches. This tribe also smears tzayok sap on ropes that are used to hang food from ceiling rafters. If a cockroach tries to sneak down for a midnight snack, it will drop dead in it's tracks.
Tribes in South East Asia use chemicals called rotenoids which they derive from lianas called derris on arrow tips when hunting and as fish poison. This substance can also be used to control fleas, house flies, lice, moths, and ticks.
In southern Mexico, tribes build their houses using beams from a tree called tzayok. The tzayok beams release chemicals that are harmless to people, but deadly to cockroaches. This tribe also smears tzayok sap on ropes that are used to hang food from ceiling rafters. If a cockroach tries to sneak down for a midnight snack, it will drop dead in it's tracks.
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