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24 • RESTRICTED MATERIALS

FIGURE 2-2.

With certain exemptions, to possess or use any restricted material for agricultural use you must have a written permit, called a restricted materials permit, from a county agricultural commissioner or the Director of DPR or be under the direct supervision of the county agricultural commissioner.

sioner or the Director of DPR must consider local conditions, including the following:

  • location of schools, homes, hospitals, recreational areas, or livestock enclosures

  • problems related to heterogeneous (dissimilar) planting of crops

  • the possibility of resurgence of primary or secondary pests that may result from improper pesticide choice. The application might kill parasites or predators, subse- quently promoting a new or more severe pest problem.

  • weather conditions

  • timing of applications in relation to bee activity (Figure 2-3). Proper timing can greatly reduce hazards

to bees. Some pesticides, when they are applied at night or early in the morning do not present a severe hazard to bees, while the same pesticide applied during the day may have a devastating effect on bees.

  • pesticide storage facilities and disposal of used containers (All pesticides must be stored in a locked enclosure except when someone is physically in control of them. The storage and container disposal requirements are ad- dressed in Chapter 4 of this study guide.)

Pest control operations must always be carried out in accordance with all permit conditions. The specific

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