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103

'VI. DISEASES OF O R W N T A L P W S ---- -

8

1054

106, Chrysanthemum

R* Alta. (&We Car

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lesions are formed o

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113 * Nar aie #us I f

ants 0% Ktng Alfmd ets digtortion and E

OXALId *I 'Woad 5

e

114.

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115.

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Stat%% Frodorioton, NIB,, dovelopod awere ohlarosis, t b n wiltad &nd died2 the prbe.b etooks remained alive. Thie trouble has booow oomon wherevex ppivet st~ok $8 used in the provinoo. The buPrh usually dies when 7-10 years old (Dd. Woteod).

!&4GE!f!ES - Marigold

Station, Frederioton, NIBI (D* J* MaaLeod).

Itah, Onto, and &ag- ar O~ UOC, with reports of heavy damage (D.LO* Savile), Several varieties wwe asriously affeated a t the Botanioal Gardon, Montreal (3.E. Jmques). Traaes woro men i n a garden at Charlottetown, P.E.I. (R4R, H u r s t ) .

Shanking (?Ph@ophthor? BP.). A 8pao-n Prom Bale Comau, Que., shawod typiocxl symptom and oontained ooonoo*io myoelium, but ww t o o severely overgrown by saprophyt;as t o pmXt ieolation (D.B.O.’ Savile).

Root Rot (Pythium ulthum) oaused aonrsiderrrble stun%ing and delayed flowering of fwoed plante-n a greenh~use a$ Lazlghy, B.C. isolated and proved pathogsnio t o pota$o (TL Jones 1.

Stem ROC (Solero%inia aolerotiorum) cJaueed s l igh t danage t o W i l l i a m P i t t in a greenhouse a t B r ontwoom*C*~ (R+”J* %stings, J A O~OVQS).

Gummosis (physiologioal). Ont., w i t h bhe statement that 90% of the bulbs i n 2 S - q w % baskots of mixed vtarietiea were affoatad. This oondPtion i s generally regarded a8 due t o insuffioiont ventilation in storage4 affeoted bulbs usually grm normally (D.B.0. Stwi l e ) .

Vanoomr, B.O. (tP. Jones).

Yellma (CalTietephw Virus 1) affeoted 17% of T* aroo%a at the - - IPUL;IPA - Tulip

W e (Botr I s Tuli ae). Spooimona wore reoeived f r o m Shallow

-.L.I)-cIcI The fungus was

S p o o b n s were reooivod from London,

The bulbs were ourod and storod i n Q aollar.

Topple (physiologiclal) , dfeated a Paw plants @awing outdoors at

VIOLA

damage t o seed oropa of - V. $viaofiir oBr* hortensis at Oyster River, B.C. :, (W. Jones).

up t o mid July# i n a d e - i e t ? , V. tricolor we ho&eneis, at Ottawa, O n t o

Blossom Slight (Bobrytis sp,)’ was oommon and oaused oonsidorable

Leaf Spot (Coroas ora Vlolae) was hQtkvy, as a resu l t of w e t weat;her

Ehny plarsts were nearly k i l l d i w A u g w t m mite and a sudden drought aaueed added in$@y (D.B,O+ Savilo)*

pansies in a eeed orop a t Elk% Firat report t o tho Swvoy. N.C. Preaton (Tr* B r i b h!yool. SOQ. 26r158-168, 1943) was able t o infeat Viola with isolates from Dollahos and HWbilsousB the fungus attaoks several a d gemra as well a s g on- mn- l iving substrates.

Stem Rot (l&ro%heoim rovidutn Tods) kil led 10% of Swiss OZ& The pathogen w a ~ Zsolated (h Jonas).