MAiiCii S, 1917. 



The Florists^ Review 



21 



l'>\ tlic ;ii(l of a ooiiipouiul iiiicioseopo, 

 I lie Ofig, larval and ailult stages of tho 

 |iaiasite may bo observed within the iin- 

 hrokeii diseased loaves, which thoy enter 

 tliroiigli wounds or air pores. Active 

 liiiva; and adults can easily emerge from 

 li'.'ivos tliiough those natural oj)cnings, 

 nr stoniata, and may be carried to other 

 |ilants, \viii(h they subse([uontly infect. 



Methods of Control. 



Tiie t'dHowing measures, suggested by 

 ^liocialists of tlio Bureau of I'lant In- 

 dustry, r. S. Department of Agricultur(>, 

 ••!< methods (if control, lia\e proved 

 helpful in jireventing the disease or in 

 reducing losses from it: 



I. Sepjirate th(> diseased from the 

 healthy plants; then remove from the 

 lormer, .•md burn, all infected parts. In 

 tliis way the chance of infection of the 

 liealthy ])lants is considerably lessened 

 and some of the disc^ased jdaiits can be 

 Ireed from the jiest. 



-. Allow as much ventilation and aera- 

 tion as possible, and avoid wetting tln^ 

 I'oliage, as the nematode is leadily 

 spread by water. 



•".. Propagate by seeds nr by tiie use 

 uf parts or all of healthy plants, using 

 -nil that has been sterilized by tlir use 

 iiH' steam or by other means. 



4. Avoid all stock from infected nurs- 

 -•I ies and regions, .and use disea^^e I'osist 

 ; rif plants whenever possible. 



'>. I'aitial success in destroying the 

 nematodes by submeiging ferns in watei 

 at a temperature of 122 degrees for five 

 minutes lias beeu r(^j)orted. says the He 

 l.artmeiit at' .Vgricultui'o. 



MODERN TUBEROUS BEGONIAS. 



TIk- loiiiiTiii.ilion of nn nrticio IifRiin in Tho 

 l;«viv\v I'oi- .Miircli ], pnfie 18.] 



Tuberous begonias are jimpagated bv 

 seeds, by division of tubers or by cut 

 tings of side shoots, th(> most common 

 and satisfactory method heing from 

 seeds. The seeds should bo sown in shal- 

 low boxes or seed ]>ans about Fobruarx 

 1, in compost consisting of equal parts 

 nf leaf-mold and peat and one-quarter 

 (harcoal. The s(>eds are extremely 

 small, rosondiling tobacco dust, and for 

 this reason are best sown directly on the 

 surface of the soil. The pan should be 

 covered with a pane of glass and sha(b'd 

 to prc\('nt drying out, b\it as soon as 

 the seeds germinate the glass and tlu' 

 shading should be removed. When the 

 plants show the third leaf they should 

 bo jiricked into flats containing a com- 

 post similar to the one already men- 

 tioned, and sjiaced two incdies each way. 

 It is ad\isable to lu'op the flats in a 

 mfdst atmosphere, and n(\ar the glass 

 nl' the greenhouses, \o ))r(>\t'nt spindling. 

 Later the plants should 1)0 transferred 

 to 4-inch pots, using soil similar to that 

 used for the tubers. The subsequent 

 treatment cniresiionds to that of the 

 lldieis. 



Increasing Desirable Stock. 



If it is desired to retain and increase 

 the stock of any variety, this may be 

 done by taking cuttings of side shoots, 

 two or three inches long, during the 

 -ummer and inserting them in leaf-mold, 

 sphagnum moss or cocoaTiut fiber. The 

 ' uttings should be kept (dose and shaded 

 for several days; a moist atmosphere 

 should be maintained by sprinkling 

 overhead, and tho temperature kept at 

 •iU to G5 degrees. As soon as the cut- 

 lings root, they should be {lotted. 



.\nnther uietlind of increasinir the 



iiilliiiiilllllillllllllllillllllllllllllllllllllllllllllllllllllllilllllllllilllllllilllllllllillllllllliu: 



I WHO'S WHO ISaSEL AND WHY | 



JULES BOURDET 



JUl.lv'^ IJOrRI )I]'r, iii;iiiager ni next week's SI. I.nul-^ (li)W('i >how, although a 

 iiatixe nf I'laiiee, is now a ln\al "St. I.n( /. iaii."' lie sa_v> sn hiiriself. W'heii 



it wa-; announced that tie- i '.-i lisian toncli. uhicli will cli.-i raeteri/e the >lio\\ , would 

 lie truly re|>resentati\ e becan-r M. Itourdc^t •i- a I 'ari-^ian, " ' ht e\ilaiine(l: • • Xo I 

 Xol 1 am a St. l^oocez ian' I wa'- a rari~iaii, fiit no loii;^er. \I \ .allegiauee is ti> 

 St. Loo-eez.'' M. Hmirdet laine to St. i,ouj-~ ;i> otlici.al llorist and landx.ape gardener 

 f(U' the l''reiudi <'ommi.->ion to the J.oui>iana rui(lia--e ilxpovition. \^ ^\iv\\ he repro 

 dnced the lirand Trianon foi the L;iniind^ -in nuinding tiie t'leiu-ii luiilding at tln^ fair. 

 He madi' many I'l-icMnis in St. I.oui- and al the fair'-; close opened .a tlower stortr 

 neai- thaw's Ciarden. 'i'weive veais ha\e iii.nie him a loval '"St. I ,oo ee/. ian, " " but 

 he ha-~ not t'nrgotten In-; Parisian ti.aiiiiii;;. a- twiiitytwo -nli minniit te, liiainnen 

 realized when thev leariu'd his plan- i\iy th.' -Imw. 



>tnrk of any iji'viicl \ariet\ is to cut 

 large tulier< into parts, each ol' which 

 contains a luid. This should lie dnui' in 

 the sjiring, and the treatment thei-eaftei 

 is sinular tn that Idi llie tiilier-^. A 

 necessary |irec;uition in tlii-- method i- 

 to ijip tht> tubers ill -hiked lime or cliar 

 i-oal to ha-teii tie he.-ilill^ ol' the cut. 



Producing New Varieties. 



The raising ol' new \;nieties from 

 seeil is a most interesting occii|i;it ioii. 

 The grow el' 's euthusiasiii i> Miniewhal 

 dampeneil ;it tlu^ start liy the iinccr 

 tainty nl' results, but the \ariety and 

 lo-illiaiice nl' the tlowers .•lie liardl> to 

 be eiiuab'd by any otiiei jilant. The o|i 

 eration itself is simple. The I'emale par 

 eiit is (diosen, the stamens are cut oil 

 before the pidlen i- lipe, and the llowei 

 is enclosed in a small w.axeil jiapei- bag. 

 to prex'ent any foreign pollen from set 

 tline on till' -tiema. The male llnwer 



may .also In' I'lndosi d in ;i -imilar bag, 

 to axoid the intermixing of p(dlen from 

 other |ilaMts jpy insects. .\s soon as the 

 stigma ot' the fem.ale jilant is ripe — 

 wlii<di can be told liy the protruding of 

 little li.aifs upon it the p(dlen of the 

 male pl.ant may be lirnu;:lil to it by 

 mean- nl' a camel's hair biush nr for- 

 ci'p-. This is best accnniplisheil in the- 

 middle nl' a bright ila\ . In a da\ n|- two 

 the stigma will turn Innwii and grad- 

 uallv die ;i\\a\, thus indicating that fer- 

 tili/atinu has taken pl.ace. .\ ]uid. whieb 



is snnn I'nruied, bursts at the tnp whoil 

 vipe, ami the see(ls fall to Ihi- ladtoni 

 nl' it. 



.•-^nUie clilliculty is experienced with 

 the dolllde tloweis. Often these fail to 

 prodie-e pollen, as the )i(dhMi bearing 

 -tameiis may have (hanged into petals. 

 This condition tna} be a\(>ided, how- 

 ever, by starving the plant - thai is, re- 

 iliiciiiL; 'he watei siipplv - thu- t'orcing 



