20 repoet of search "t^oe enemies of citrus white fly. 

 Discovery of the Brown Fungus, ^gerita webberi. 



During this examination of the Saharanpur region the writer's 

 attention was frequently called to the presence of a brownish fungus 

 attacldng the wliite fly on trees in well-shaded positions. It seemed 

 identical to all appearances with the Florida brown fungus {jEgerita 

 loehheri), yet in order to be certain in this determination a quantity 

 was sent to Prof. H. S. Fawcett, formerly of the Florida Agricultural 

 Experiment Station, an authority on fungous diseases of the white 

 fly. His identification of it as JEgerita webheri was conclusive in 

 showmg that this fungus occurs in India as well as in Florida. 



The writer failed to find this fungus except in the region about 

 Saharanpur. A great deal of exchanging of plants, especially of 

 citrus trees, between the botanical garden at this place and certain 

 nurserymen- in Florida has been gomg on for many years, and it 

 seems quite likely that the brown fungus was introduced from 

 Florida into India through these exchanges. 



Searching at Lahore. 



Leaving Saharanpur on November 10 the search was continued 

 northward into the Punjab, and Lahore, the principal city in this 

 Province, was made temporary lieadquarters. It is located toward 

 the center of a broad plain and is less than 500 feet above sea level, 

 although more than a thousand miles inland from the ocean. The 

 plain is bordered on the north and east by the gigantic Himalayas, 

 while it opens southward in an unbroken stretch to the sea. The 

 climate is generally dry, the temperature of the summer being exces- 

 sively hot, frequently reaching to between 115° and 120° F., while 

 the winters are comparatively cold, the minimum temperature 

 averaging between 35° and 50° F. It is very seldom that the tem- 

 perature falls below 35° F. 



Orange trees are abundant at Lahore, being found in almost every 

 yard, as well as being the most common plant used for hedges. In 

 the vicinity of this city they are grown to a considerable extent for 

 commercial purposes. This consideration, coupled with the induce- 

 ment offered by the presence of a large botanical garden, led to the 

 decision that Lahore was the most suitable situation in the north for 

 continuing our efforts, and later developments resulted in demon- 

 strating it to be the most suitable locality in ail India. Considering 

 the abundance of orange and lime trees as well as their diverse con- 

 ditions of cultivation, existing, as they did, from dense growths of 

 seedling trees, entirely uncared for, to well-cultivated orchards of 

 healthy budded stock, it seemed that if the white fly and natural 

 enemies were to be found anywhere in northern India this must 

 be the place. 



