lis 



U U a T 1 C U L 'I' U K K 



Jniiiitiry 23. 1916 



GYPSY AND BROWN TAIL MOTHS 

 DECREASING. 



A iiiurkt-d (Icrnuhi' in tlii> iiiiiiibur u( 

 both the- R.v|isy unci bruwiilail moths 

 is (leclurod by tli<> Ilurouii of Kiitniiiol' 

 ■ogy of tiie U. S. Dei>nrtment of Agri- 

 culture to have taken plare In the 

 period coverpd by the roport which 

 has recently been published of its 

 work for the year ending June 30, 

 1914. This has been largely brought 

 about by the wilt disease and the para- 

 site and other natural enemies of 

 these pests, which have been intro- 

 duced to fight them. Several isolated 

 colonies in Greenfield. Mass., appear 

 to have been exterminated, and in the 

 region around Lenox. Stockbridge and 

 Great Barrington the moths have also 

 been almost eliminated. This is also 

 true of the isolated colony at Walling- 

 ford. Conn. At Stonington a few egg 

 clusters were found, and the Connecti- 

 cut authorities are in charge of work 

 there. 



In New York a colony at Geneva ap- 

 parently has been exterminated, and a 

 colony found on a private estate at 

 Mount Kisco is now being stamped 

 out with the co-operation of the New 

 York authorities. The report calls at- 

 tention, however, to the need for laws 

 in other states similar in character to 

 that of Massachusetts, which provides 

 that each municipality must do Its 

 share toward controlling the moths. 





A Magnificent 

 Volume on 

 Horticulture 



Origintillv pub- «J» t CZr\ 

 luhed at $2.50 »Pi-.OLI 



L^ 1 R K E G A A RD'S 

 '^ '■ Trees. Shrubs, 

 ^■ines and Herbaceous 

 Perennials " : a book 

 which bids fair to be- 

 come a classic In its 

 field. 



With Itii 410 pases packed 

 fun of Karden lore. Its 

 00 beautiful full-page se- 

 pia photos .ind Its com- 

 prehensive pl.inting list 

 . it Is a seiiuhie contribu- 

 tion to the literature of 

 Horticulture 



An Ideal Gift 



The edition is 

 almost exhausted. 

 We've picked u p 

 a limited quantity 

 which we can let our 

 readers h.nve for ?1.,">0. 

 Send chefjue nr moner 

 order; we'll forward the 

 book postpaid. 



Horticulture 



n Hamilton Place - 



Boston, Mass. 



Pulverized Sheep Nanur^ 



^ . From Big Feeding Barns 



^ Ho Adulteration-No Weed Seeds^ 



jR\i* 





Sheep's Head Manure is the clean- 

 est in America. Here are the big 

 covered corrals of the railroads, 

 where the sheep are unloaded and 

 "«. kept from 6o to 90 days to fatten 

 for the Chicago market. 



We Guarantee 



THIS IS THE BRAND 

 GlAn.VNTEED PURE 



our product to be absolutely clean 

 — no pig manure or other adultera- 

 tion — nothing but sheep manure — dried and pulverized 

 for easy handling, and all the weed seeds killed. 



Some of the largest growers in the East have used our 

 product for years. 



Shipped in 100 lb. sacks 



Write for quotations and freight rates 



NATURAL GUANO CO. 



815 River Street 



Aurora, 111. 



MASSACHUSETTS AGRICULTURAL 

 COLLEGE NOTES 



The ten-week's course offered each 

 year at the college opened on Jan. 4. 

 In the floricultural course the work 

 will consist of greenhouse soils and 

 their preparation, fertilizers and their 

 use, methods of potting, watering, 

 heating and ventilation, outdoor plant- 

 ing and such other branches as are 

 necessary to the man in charge of a 

 greenhouse or greenhouse range. In 

 addition to the major and minor crops 

 of the florist, the bedding plants, an- 

 nuals and perennials used as cut flow- 

 ers by the florist will be considered. 



.Many new books have been secured 

 along floricultural lines and placed for 

 use in the French Hall library and 

 an index file has been started dealing 

 with specialized floricultural subjects. 

 W. H. Hatfield. 



when these qualities are guaranteed, 

 then sheep manure is a sterling stand- 

 by for the grower, under glass or out- 

 side. 



QUASSIIN A CHEAP INSECTICIDE. 

 Attention is called in a recent bulle- 

 tin (No.165) of the United States De- 

 partment of Agriculture to the possi- 

 bilities of quassiin as a contact insecti- 

 cide. There is reason to believe, says 

 this bulletin, that quassiin can be 

 cheaply prepared and possibly sold at 

 a lower price than some of the mate- 

 rials now used in commercial insecti- 

 cides. In investigating the efficiency 

 of the quassiin spray, the author of the 

 bulletin compared it with a standard 

 •insecticide known as nicotine sulphate, 

 a tobacco product. The quassiin he 

 believes to be equally effective. 



ABOUT SHEEP MANURE. 



Sheep manure is an unexcelled, use- 

 ful and effective plant food and stimu- 

 lant but its great potential strength 

 should never be underestimated and 

 unless used with discretion its effect 

 is not always satisfactory. Growers 

 should differentiate between crude 

 sheep manure and the processed and 

 pulverized product such as is being 

 offered by some of Hnuru i [.hkks ad- 

 vertisers. In this form many of the 

 objections to the use of sheep manure 

 have been eliminated and it is put into 

 a form for very convenient handling 

 and for uniform distribution where 

 wanted. Purity and freedom from 

 chopped straw, sand and weed seeds 

 are all essential for good results and 



DO YOU KNOW THAT— 



The money you invest in greenhouse 

 painting is well spent every time. 



Doubling the diameter increases the 

 capacity of a pipe tour times. 



Dry lieat and steam are satisfactory 

 agents for disinfecting soil, and not 

 only clear it of eel worms, but also 

 of parasitic fungi causing drop and 

 rot, as well as other pests. 



Grafted roses can stand more nitro- 

 gen than roses on their own roots. 



Easter Sunday falls on April 4, this 

 year. 



The sweet pea is a native of Sicily. 



All shrubs destined to forcing want 

 a period of rest, for which exposure to 

 freezing is very essential. Instead of 

 freezing, aetherizing and hot water 

 treatment is used w-ith very satisfac- 

 tory results. 



