May 31, 1946 



Prepared by the Fruit Program Committee 

 of the Extension Service 



W. H. Thies, Extension Horticulturist 



Contents 



DDT in the Fruit Pest Control Program 



Strang© Facts about Fruit Diseases 



Trained Dwarf Fruit Trees 



Do You Know? 



Magnesium in the Apple Orchard 



DDT Itr THE FRUIT PEST CONTROL PROGRjai 



Experiments in many parts of the-country have shovm that DDT has 

 proved more effective against many of th« serious pests *f agricultuml crops 

 than any other insecticide yet produced, T/l/hen used in proper formulations, 

 DDT has shown definite promise against such prominent pe^te «i« c«dli»g moth, 

 JapoRcae beetle, .Ori%ntal fruit moth,,gypey moth, ani wthers. 



One of its great advaatages is the fact that it is eompatible with 

 most of our common insectioldes and fungicides, such as lead arsenate, fryo- 

 lite, nicotine compounds, dinitro compounds, wettable sulfurs, fermat*, etc. 

 Its use is not recommended with strongly alkaline materials a»d it should not 

 bPi used with lime. 



Issued oy t^e Extension Service In furtherance of Acts of May S and June 30, igiU, ' 

 Willard A. Munson, Director, Massachusetts State College. United States Department 

 of Agriculture and County Extension Services Cooperating. - ■ " 



