36 



NEW YORK STAT£ MUS£UM 



Oidiuin asteris-punicei FA'. 

 Oxybaphus floribundus Cliois. 

 Pertusaria leioplaca (Ach.) 

 Pholiota terrigena Fr. 

 Phoma piceina Pk. 

 P. simillima Pk. 



P. stictica B. & Br. 



Phyllosticta betae Oxid. 

 P. subtilis Pk. 



Physcia hispida (Schreb.) 

 Picris liieracioides L. 

 Pilocratera abnormis Pk. 

 Placodium ferrug. discolor Willey 

 Plasmodiophora clacagni Schroct. 

 Pleurotus approximans Pk. 

 Ramalina rigida {Pers.) Tuck. 



Rhabdospora physostegiae Pk. 

 Scirpus occidentalis {Wats.) Chase 

 Siderantlius gracilis (Ntitt.) Rydb. 

 Sphaeropsis smilacis latispora Pk. 

 Sporotricluim grisellum Sacc. 

 Theloschistes flavicans Wallr. 

 Thlaspi perfoliatiim L. 

 Trichothecium siibgriseiim Pk. 

 Triosteum perfoliatiim L. 

 Usnea trichodea Ach. 

 Vermiciilaria beneficiens Pk. 

 V. pomicola Pk. 



Verticillium agaricinum {Lk.) Cd. 

 Viburnum venos' ,ti Brittun 

 Vicia villosa Roth 



IV 



REPORT OF THE STATE ENTOMOLOGIST 



The State Entomologist reports that the past season has been 

 remarkably quiet so far as unusual outbreaks of injurious insects 

 are concerned. The Entomologist was exceptionally fortunate in 

 discovering a colony of pedogenetic larvae, presumably those of 

 jMiastor americana. These extremely peculiar forms were 

 previously unknown in 'this country and have been studied by only 

 a few Europeans. 



Fruit tree pests. The experimental work with the codling 

 moth was con.tinued during the present season under more diverse 

 conditions and data secured which will be of great value in the 

 practical control of this species. The experiments were conducted 

 in the orchards of W. H. Hart, Poughkeepsie ; C. R. Shons, Wash- 

 ingtonville, and William Hotaling, Kinderhook. Great care was 

 taken to secure an ample number of trees likely to produce a nearly 

 uniform amount of fruit. As last year each plot, except in the case 

 of Mr Hotaling's orchard, consisted of 42 trees, the fruit from 

 the central six alone being counted. Comparisons were made to 

 ascertain the relative efficacy of one spray given just after the 

 blossoms dropped, with this treatment supplemented by a second 

 application about three weeks later. The unusual abundance of the 

 codling moth during the past season renders the data secured of 

 exceptional value because they show the possibilities under very 

 adverse conditions. 



The San Jose scale is still very destructive, especially to peach 



