562 NEW JERSEY STATE AGRICULTURAL. 



sprayers are no longer rarities and at least one of our fruit grow- 

 ers has two of them in service and a large "dust-sprayer" as well. 

 Most of the makers of spray pumps now have also a power outfit 

 and sell equipments with wagons, spray-towers and everything 

 else, complete. The city of Newark, through its Shade Tree 

 Commission, contemplated the purchase of a spraying outfit and 

 intrusted the matter of securing bids to me. The result showed 

 an unexpected number and variety of machines so that choice was 

 difficult. A distinctly useful new form is that type of machine 

 geared from the axle to an air pump which, as the wagon moves 

 along accumulates pressure to do the active work of spraying. 

 This is an improvement upon the machine geared from axle 

 directly to the pump, which stopped whenever the wagon did. 

 Now. in driving from the yard to the orchard, sufficient pressure 

 to sprav several trees is accumulated, and this is kept up in the 

 driving through the orchard in actual spraying work. The great- 

 est advance in this direction is a machine in which the expansive 

 power of licjuid carbonic acid gas is em])loyed in securing a uni- 

 form pressure. 



Miscellaneous. 



Two Bulletins have been issued from this Department since the 

 date of the last Report: number 169, "Insecticides and Their 

 Use", and number 171. "The Common Moscjuitoes of New Jer- 

 sey." Material is in hand for an essay on shade tree insects and 

 some attention has been paid of late t(^ those becoming trouble- 

 some or injurious indoors. 



The work of the State Entomologist has continued along the 

 same lines as in previous years and Mr. Edgar L. Dickerson is 

 still assistant. During the winter T attended a meeting of the 

 Horticultural Inspectors at Washington. D. C. where the general 

 subjects of interest were fully discussed by representatives from 

 all sections of the country. A full report on this work, which is 

 of vital importance to the fruit-growing industries of the State, 

 will be made to the State Board of Agriculture. 



The mosf|uito investigation has been completed and the final 

 report has been handed in for publication. It is believed that the 

 solution of this problem in our State has been worked out. and 

 that by patient labor, tending to convince communities of the 

 feasibility of the plan proposed, together with some assistance 

 from the State, the final control and practical extermination of 

 the mosquito pest is a matter of a comparatively short time. 



During the winter of i903-'o4, it was suggested by the State 



