726 THE MONTHLY BULLETIN, 



is high and the winter temperature low. Espeeiall.y fine was the exhibit 

 from Inyo County. One of the judges remarked that everything in 

 that exhibit shoukl take a prize. The display from Humboldt County 

 was also greatly admired. Second, the diversity of products which we 

 can get almost in any county of California. 



In an automobile drive we noticed some of the orchards excellently 

 well-cultivated ; others, not so. These last, with a large growth of weeds, 

 were certainly losing great quantities of water, carried off by trans- 

 piration, which they could illy afford to lose. 



Evidently many props had been used to hold up the great crop and 

 to prevent breaking of branches. Would not more attention to pruning 

 and thinning of fruit do away with this necessity of using props, and 

 so permit cultivation and destruction of weeds? 



It is certainly true that this year's display of exhibits at Sebastopol 

 and Watsonville fully demonstrates the value of such expositions. — 

 A. J. Cook, 



TWO SPRAY FORMULA FOR FRUIT FLIES. 



In the work of controlling the olive fruit fly in France, S. Scelsi^ 

 gives two important spray formulfB which have become very noted in 

 that country, and which may prove of value in the control of the few 

 fruit flies known in this country. They are as follows : 



iReview of Applied Ent. Vol. I, Ser. A, Part S, p. 271, Aug., 1913. 



Berlese Formula. 



Molasses 20 pounds 



Arsenate of potash 4 pounds 



Water 20 gallons 



De Cillis Formula. 



Molasses 130 pounds 



Honey 62 pounds 



Glycerine 4 pounds 



Arsenate of soda 4 pounds 



Water 20 gallons 



The spraying should be done thoroughly, great care being taken to 

 see that all of the leaves are wet. — E. 0, EssiG. 



SOME INTERESTING FRUIT FLIES. 



Prof. C. F. Baker has made some remarkable discoveries in the 

 Philippine Islands with regard to fruit flies, which are worthy of note 

 here. The melon maggot, Dacvs cucurhitce Coq., is abundant there. 

 Dacus ferrugineiis Fab., as has been previously reported there, proves 

 to be Dacus ferrugineiis var. pedestris Bezzi. The most interesting fly, 

 the maggots of which he found swarming in wild oranges, proved to be 

 a new genus and a new species which Bezzi named MonacrosticJius 

 citricola. 



Prof. R. W. Doane, of Stanford University, has recently collected the 

 Queensland fruit fly, Dacus zonatus Coq., on the Island of Tahiti. 



Specimens of all the above species are in the collection of the State 

 Commission of Horticulture. 



All of these fruit flies are serious pests, so these records are of great 

 value to the horticultural quarantine departments of the state work. — 

 E. 0. EssiG. 



