INSECTICIDES TO CONTROL THE WHITE-FRINGED BEETLE 



Type of land and 



Insecticide J 



Type of application 



treatment 



Broadcast 



Drill row 2 



Cultivated (soil treat- 

 ment) . 



/Aldrin 



Chlordane 



/DDT 



Dieldrin 



VHeptachlor 



Pounds 

 per acre 

 2 

 5 

 10 



2 



Years 

 effective 



3 or more 



3 

 4 



4 or more 

 3 or more 



Pounds 

 per acre 

 % to 1 



1 to 2 



2 to 3 

 }4 to % 

 %to 1 



Years 

 effective 



Noncultivated (surface 

 treatment). 3 



Dieldrin 



3 



4 or more 











1 Use only on crops on which they are currently approved. 



2 Row treatment not recommended on vegetable crops. Deposit below depth of 

 seed. If the distance between drills is less than V/i feet, apply the maximum dosage ; 

 if it is more than 6 feet, apply the minimum dosage. 



3 Application should be made only under general direction of Federal or State plant 

 pest control personnel. 



nomical methods being the turning 

 under of winter-grown cover crops. 



Insectiddal c ontr o I. — White- 

 fringed beetles can be controlled or 

 eradicated through the use of ap- 

 proved insecticides. The dosages 

 shown in the table are for control 

 and the prevention of crop damage. 

 For eradication, heavier dosages 

 and broadcast applications are re- 

 quired. Several insecticides are 

 recommended : aldrin, chlordane, 

 DDT, dieldrin, and heptachlor, 

 each of which has a long residual 

 effect and when used in the recom- 

 mended manner will give control 

 for several years. These insecti- 

 cides are available in several types 

 of formulations, each of which is 

 effective : emulsifiable concentrates 

 or wettable powder, from which 

 sprays can be prepared; dust, or 

 granules. Sprays, dusts, or gran- 

 ules may be applied by power or 

 hand equipment or by airplane. 



The best method of controlling 

 the insect is to kill the larvae with 

 a soil application of one of the ap- 

 proved insecticides. 



To control the beetles in culti- 

 vated land, broadcast aldrin, chlor- 

 dane, DDT, 



dieldrin, or hepta- 



chlor on the soil surface and imme- 

 diately after application thoroughly 

 mix the insecticide into the upper 

 3 inches of the soil. The insecti- 

 cide can be mixed into the soil by 

 the use of a disk or other suitable 

 farm implement. 



In applying the insecticide to the 

 soil surface, every effort should be 

 made to obtain an even coverage. 

 If the field is covered with heavy 

 vegetative growth, it is recom- 

 mended that it be plowed prior to 

 the application of the insecticide as 

 this will be helpful in obtaining an 

 even distribution. 



An alternate treatment which 

 will give crop protection is to apply 

 one of the recommended insecti- 

 cides, alone or mixed with fertilizer, 

 in the drill row at the time of plant- 

 ing. This is not as good as the 

 broadcast method in reducing the 

 beetle population, especially the 

 first year; however, its use over a 

 period of years will result in good 

 control. 



Noncultivated land, such as 

 lawns, industrial and railroad prop- 

 erties, roadsides, and Avasteland, 

 that is not used for grazing animals 

 can be treated with a surface appli- 



