ECONOMIC ZOOLOGY ENTOMOLOGY. 653 



Observations have shown that the fungus is parasitic only on the chestnut, 

 and the variety Paragon, seems quite susceptible. While the Japanese varie- 

 ties are not immune, they are more resistant than the native ones, so far as 

 observed. 



Contribution to our knowledg'e of the willow Melampsora of Switzerland, 

 O. Schneider-Orelli {Ccntbl. Bakt. [etc.], 2. AM., 25 (1909), No. 1J,'18, pp. 

 .'i36-.'t39). — The author divides the group morphologically into three divisions: 

 (1) Teleutospore membrane not thick, uredospores long: (2) teleutospore mem- 

 brane not thick, uredospores round; (3) teleutospore membrane at the apex 

 very thick, uredospores round. A brief discussion of the various biological 

 species of Switzerland is given. 



A new leaf disease of the pine (Pinus silvestris), E. MtJNCH and K von 

 TuBEUK {Natiirw. Ztsclir. Foist u. Landw., 8 {1910), Ao. /, pp. 39--}//).— This 

 disease, which causes the needles to turn brown and fall i)rematurely, is de- 

 scril)ed as due to a new s|)ecies of fungus, HnuJrrsonin aricola. 



The making and application of Bordeaux mixture, E. S. Salmon (.Jour. Bd. 

 Agr. [London], 16 (1910), So. 10. pp. 793-810, figs. i7').— Directions are given 

 for making Bordeaux mixture and suggestions for its proper application. The 

 author states that the ready-made Bordeaux mixtures on the market are not 

 so eflicient as the fresh homemade mixture, and that the powdered forms are 

 of relatively little value as fungicides. 



ECONOMIC ZOOLOGY— ENTOMOLOGY. 



Report of territorial entomologist, A. W. :Morrill i^^oulJiwrst. Stockman, 

 28 (1909), No. 25, pp. 1, (i, 7). — This is a report on entomological conditions in 

 Arizona with recommendations concerning the work of the horticultural com- 

 mission. The Florida, California, and Cuban conditions as related to the pos- 

 sible introduction of insect pests into Arizona are reviewed, and the value of 

 inspection in excluding dangerous pests, the treatment of nursery stock by 

 fumigation or insecticide washes, and the defoliation of citrus and other white- 

 fly food plants are discussetl. 



It is concluded that the best interests of citrus growing :.s an industry in 

 Arizona can be safeguarded only by an absolute quarantine against the im- 

 portation of citrus nursery stock from all sections known to be infested with 

 dangerous pests. Such action is recommended to the commission i)rovided that 

 in the judgment of its members this would receive the moral supi)ort of those 

 who have permanent interests requiring protection. 



Twenty-fourth report of the state entomolog'ist on injurious and other 

 insects of the State of New York, 1908, E. P. Felt (N. Y. State Mus. Bui. 

 13Ji, pp. 206, pis. 11, figs. 22). — During the season under report fruit trees in 

 some sections of the western part of the State were seriously injured by the 

 cigar case bearer. The fall cankerworm was unusually abundant and destruc- 

 tive on eastern Long Island and in the vicinity of New York City, The warm 

 dry weather in the latter part of the season was favorable to the unrestricted 

 multiplication of the San Jose scale and in some cases infested orchards became 

 very badly affected. An unprecedented outbreak of the grape blossom midge 

 destroyed from 50 to 75 per cent of the blossoms on an acre of Moore Early 

 grapes at Fredonia. 



Ravages by the elm-leaf beetle were very severe in many Hudson valley cities 

 and villages. The extensive outbreaks by the green-striped maple worm, pre- 

 viously reported, continued in southern Rensselaer County. The depredations 

 by the snow-white linden moth, previously reported, were continued in th(? 



