PUBLISHED PERIODICALLY BY RESEARCH DEPARTMENT, LAWRENCE ROBINSON & SONS, MODESTO, CALIFORNIA, U.S. A. 
DISEASES OF ‘THE, CUCUMBER 
Symatome | ‘Causes, ane Controls 

1h) at oat eae he --. Please save: for reference. 
Pare Wiese BOREAL I ea ee ahi Additional copies on request 
_ We give no warranty, express or implied, as to the productiveness of any seeds or bulbs we sell and we will not de in 
Pe any may pani for the Sia hs Liga in a apetenese is limited to the purchase price of the seed. 
i a aks 
aie For easy reference, common Sioaade of the CUCUMBER are discussed below with.their 
faa abe causes, symptoms, and the most effective controls we've been able to determine to 
ie enc Ae bear in mind. that control effectiveness varies with locality 










: ek pot ene Langs pee bacterial Rede WhiCn pep white, eShaaety ayes on 
lower surface. of leaf and on the young runners. Similar water- soaked spots 
f n white God crack open Hae! on the SALES, 

mn It ‘is also ie yee by the seed heevek tod ok 
eee ‘The organism is pda by irrigation water and insects. 
















NE po Ee UN 3 
© crops! sO that ‘cucumbers are ‘not fcdioniess successively. Destroy 
fen tes 
gnting seed fox: es minutes in MERCURIC CHLORIDE solution (4 oz. 
a er) coin He: a clean water rinse, After seed has dried 
ath: na SPEREON ed Ee en We heve.. had excellent siphs any with ARASAN, 
ie j AoA ( ; 7 4 ; y : 
SYMPTO S: Leaves epee Ae opiate: ioe sania. dead Sh ote which often become 
_ numerous enough to virtually cover entire leaf. Elongated, light brown’ spots 
tee develop on stems and — ee Water—s caked Spe ys {at times, with pinkish centers) 
WN ag ia on £ ak oar arm ane Sa ihe 
Py ‘ ates f Y f ie bi ; mt ‘ Hey F ‘ ( F: 
= guys: ungus- organism which over- Winters on the seed of diseased fruits 
iseased Hoey PLANT es aaes material aa the soil. 
pt Al 














otation. Do. not (ian? Homage a CUCURBIT family. successively. 
tment. program as outlined above for ANGULAR ‘LEAP SEOs 
te OME EE somewhat | effective Moe POWDERY MILDEW). 
sLlow Guprocide; 10% ve neat isonat a: 76% Talc. iif 
er—-A ‘Compound; 40% Calcium. Arsenate. 76% Tale. 
\S Son: ‘as young plants appear, begin weekly dusting with 
(at he tb) formulas— and continue until vining begins, After vin- 
change to formulas. (c) or: (a) below, which also are help— 
eee CUCUMBER BEETLES, and most common diseases 
7 


30% Black Leaf 40; 6% Yellow Cuprocidr; 54% Tale. 
a 
