Identify one method of chemical control in forestry.

The method of spraying or injecting pesticides to directly manage pest threats is recognized as a key form of chemical control in forestry. This approach involves the application of chemical substances specifically formulated to kill or deter harmful pests that may threaten forest health and productivity. By delivering these pesticides directly to the areas affected by pests, foresters can effectively reduce pest populations, thereby protecting valuable tree species and maintaining ecosystem balance.

The use of pesticides in this manner allows for targeted action against specific types of pests, which can be crucial in situations where biological or mechanical controls may not be sufficient or feasible. Timing and technique are important factors in this method, as applying chemical control during the pest's life cycle can improve effectiveness and minimize potential impacts on non-target species and the environment.