What effect do organic phosphates have on insects?

Organic phosphates, also known as organophosphates, primarily affect insects by acting on their nervous system. This class of insecticides inhibits the enzyme acetylcholinesterase, which is responsible for breaking down the neurotransmitter acetylcholine in synapses. When this enzyme is inhibited, acetylcholine accumulates, leading to persistent stimulation of nerve receptors. This overstimulation can result in a range of symptoms, including muscle spasms, paralysis, and ultimately death in insects.

The mechanism of action highlights the relationship between organophosphates and insect nervous systems, making it clear that their primary effect is through disruption of normal neural transmission. This understanding is critical for pest control professionals in determining appropriate pest management strategies and ensuring safety in the application of these substances.

Other options, while related to pest control, do not accurately reflect the specific action of organic phosphates on insects.