Question

according to ipm, pesticides should only be used as a last resort and should be what type of pesticide? persistent (stays around for years) nonpersistent (goes away in days or weeks)

Explanation:

Integrated Pest Management (IPM) aims to minimize environmental and health - risks. Nonpersistent pesticides break down more quickly, reducing long - term impacts. So, they are preferred in IPM when pesticides must be used.

Answer:

Nonpersistent (goes away in days or weeks)