7. Use nozzles as small as possible to output. Because the fungicide is a wet- 

 table powder, the nozzles will tend to clog if their output is less than 

 0.5 gallon per minute at 40 p.s.i. Either hollow-cone or flat-fan nozzles 

 may be used, but hollow cones are preferred on ground rigs. 



S. On aircraft, point the nozzle outlets forward to promote maximum break up of 

 the droplets. 



9. On ground sprayers, use nozzles above the rows and drops between the rows to 

 spray into the canopy. 



10. The higher the spraying pressure, the better coverage and control you can ob- 

 tain. Aircraft spraying pressures should be 30 p.s.i. or above. Ground 

 spraying should be at 80 p.s.i. or above. Little will be gained by spraying 

 above 100 p.s.i. with either ground or aircraft. 



11. A pint of surfactant per 100 gallons of spray will reduce surface tension and 

 improve coverage and hence disease control. 



READ TEE LABEL AND FOLLOW ALL PRECAUTIONS 



This weekly report was prepared as follows : 



INSECTS: H.B. Petty, Steve Moore, Roscoe Randell , Don Kuhlman , and Tim Cooley , College 

 of Agriculture , Universtty of Illinois at Urbana-Champaign, and the Illinois Natural 

 History Survey. 



WEEDS: M.D. McG lamer y , and E.L. Knake , Department of Agronomy. 



PLANT DISEASES: E.E. Burns and M.C. Shurtleff , Department of Plant Pathology. 



AG COMMUNICATIONS: Del Da hi . 



The information for this report was gathered by these people, staff members, county 

 Extension advisers, and others, in cooperation with the USDA Agricultural Research 

 Service, Plant Pest Control Branch. 



