FALL NUMBER 29 
weather conditions he may often safely leave the control of the 
pest to the fungus, and save the cost of spraying. 
Another paper on entomogenous fungi was read by Dr. E. W. 
Berger, who gave a brief account of his growing, in pure cul- 
tures, of two fungi hitherto not so grown and of his discovery 
of a new strain of the Red Whitefly-Fungus. 
The new fungi are Aschersonia goldiana on Cloudy-winged 
Whitefly from Cuba (specimens received at the Experiment Sta- 
tion) and on an unknown aleyrodid from Winter Park, Florida; 
and the Cuban Aschersonia found infecting the Pyriform Scale, 
and Liriodendron Scale in Florida, and the Tessellated Scale in 
Porto Rico. 
The new strain of the Red Whitefly-Fungus was discovered 
on some holly and bay leaves sent in from a hammock at Winter 
Park, Fla. It fruits freely in the culture bottles during summer, 
a fact which has not been true for the other strains heretofore 
grown. This fact will make it possible to grow it in smaller 
quantities during summer as needed, thus always assuring a 
fresher product than heretofore when the whole crop had to 
be grown in late winter and early spring and kept in cold stor- 
age. Indications are that it is also an unusually virile strain. 
Prof. J. R. Watson presented the results of some recent ex- 
periments on spraying for thrips. He exhibited a table giving 
the results of spraying to lessen thrip marks on fruit. This 
covered the results in seven groves from Lake to St. Lucie 
counties. In groves where the thrips averaged from 25 to 64 
per bloom, about half of the unsprayed fruit was marked to 
such an extent as to lower its grade from brights to goldens if 
otherwise perfect. 388% of this scarring was prevented by a 
single spraying. This repaid the cost of spraying many times 
ever. Groves in which the thrips averaged 10 per bloom did 
not repay the cost of spraying for thrips alone. But where they 
were being sprayed at blossoming time for rust mite or scab the 
additional cost of adding 34, pt. of Black Leaf 40 per 100 gallons 
was repaid twice over. 
The proper time to spray is when the trees are in full bloom, 
and the proper solution at least 1 pt. of Black Leaf 40 to 100 
gallons of the rust mite spray solution. 
Mr. Neal F. Howard gave an interesting account of the Mexi- 
can Bean Beetle investigations of the Bur. of Entomology, U. S. 
D. A., in Alabama, Georgia and Tennessee. There appears to be 
no hope of stopping the beetles and growers of legumes will have 
