PESTI IDE REGISTRATION AND THE LABEL • 17
However, be cautious about using lower rates. Sometimes using lower rates speeds up the development of pesticide resistance in the target organism. To avoid possible problems when using lower rates, check first with the local farm advisor.
Under no circumstances can you legally increase the amount of esticide you a ly beyond the maximum label rates.
Decrease in the concentration of the mixture a lied. Label instructions usually state the volume of water to use when preparing a spray mixture. It is always possible to use more water than this, however too much water may cause excessive dilution and runoff. This results in not enough of the pesticide getting to the target pest. In most cases, use only as much water as necessary to obtain thorough coverage. Be sure this is not less than what the label states.
need to make additional treatments. Additional applications sometimes increase other pest problems by disrupting natural enemies. Besides, it is expensive to use unneeded pesti- cides.
However, reducing the frequency of a pesticide application below label recommendations may result in inadequate control. Before reducing application frequency, carefully monitor the pest population.
It is never permissible to apply a pesticide more frequently than the interval listed on the label. You may apply the pesticide repeatedly if the label does not limit the number of applications or it states “apply as needed.” Monitor the pest to be sure that repeated applications are neces- sary.
Use to control a target est not on the label when the commodity or site is on the label and use against an unnamed
Increase in concentration as long as it corres onds with ublished recommenda- tions of the University of California. There are times when it would be convenient to use a more concentrated mixture than the dilution rate specified on the label. Although you would apply no more than the labeled rate of pesticide, you would prefer using less diluent or carrier, such as water or oil. If there are current, published UC guidelines for doing this, you can increase the concentration. However, these guidelines are pesticide-specific. Comply with all other label instruc- tions. Remember, verbal recommenda- tions of any type are not acceptable.
A lication at a frequency less than s ecified. Label instructions often prescribe how often to apply a pesti- cide. Manufacturers recommend this frequency to maintain adequate control of the pest being treated. It is permis- sible under the law to make applica- tions less frequently than the label recommends. If your monitoring confirms that less frequent applications adequately control pests, there is no
est is not ex ressly rohibited. You may wish to use a pesticide on a commodity or site listed on the label, but the label does not list the target pest. As long as the label does not forbid use of this pesticide against the pest on the commodity or site, you may use it. Be certain the label lists the intended commodity or target site. Follow all other label instructions.
Use of any method of a lication not rohibited, rovided other label directions are followed. Most label recommenda- tions do not specify exactly how to apply the pesticide. Should this be the case, it is possible to use any practical method. However, be sure the method you choose allows you to follow all other label directions.
Applying a pesticide by ground or by air is an example. If there is no prohibi- tion against aerial application on the label, you may use either method. However, you must comply with all label directions. (It may not be possible to apply a pesticide by air when the label prohibits the lower dilution rate required for aerial application.)