212 FUMIGATION METHODS 



of prominence, the redscale ranks next to the black 

 scale in California. The red scale is also familiar to 

 fruit growers in the colonial orchards. Considering all 

 things, Professor Lounsbury is of the opinion that 

 fumigation conducted by the contract system would 

 be more advantageous to the colony than that done by 

 local organizations. There are only a few slight dif- 

 ferences in the methods of operating and handling 

 sheet tents. The derrick-poles used in the colonial 

 orchards for manipulating the tents are very much the 

 same as those employed in California. The dome- 

 shaped covers, known as bell tents, are used. 



In a recent circular Professor Lounsbury makes the 

 following statement : ' ' Californians have demonstrated 

 that they can grow citrus fruits at a profit, in spite of 

 the heavy expense of fumigation. They fully realize 

 that they may have to keep fumigating for an in- 

 definite time. Their hope is, as ours, that efficient 

 natural enemies of the scale insects will be found in 

 the future. For South African fumigators it is espe- 

 cially recommended that changing poles be adopted for 

 small sheets. A few colonial parties have fumigated 

 for the white peach scale, Diaspis amygdali, and con- 

 sider the remedy economical and satisfactory. If light 

 weight sheets, handled with changing poles, were 

 used it is probable that the gas treatment for this scale 

 would become popular with a large number of our 

 fruit growers. ' ' 



New experiments at New York Agricultural Exper- 

 iment Station. Some timely and practical work has 

 been recently completed at the New York Agricultural 

 Experiment Station by Prof. V. H. Lowe, the entomol- 



