FLORIDA STATE HORTICULTURAL SOCIETY 
205 
has not shown on the fruit to any ex¬ 
tent. 
SCAB. 
This fungus disease which of late 
years has been attacking grapefruit much 
more than formerly, has this year ap¬ 
peared to much greater extent than ever 
before. The blooming of the trees has 
extended over a much longer period than 
usual, and growers have been some¬ 
what at a loss to know how to go about 
spraying for scab, fearing that spraying 
while the bloom was open would cause 
dropping of the bloom. 
Weather conditions which have aided 
the development of friendly fungi seem 
to have also aided the development of the 
scab fungus. Groves that have never be¬ 
fore been infected, this year have a great 
deal of scab, and in some groves which 
had a little scab last year, are found 
trees on which every single grapefruit 
is affected. 
The scab is found on nearly every 
variety of grapefruit except the Roy¬ 
al, which seems to be practically im¬ 
mune. Growers in one or two sections 
have thought that grapefruit trees, bud¬ 
ded on grapefruit stock, were more sus¬ 
ceptible to scab than those budded on 
rough lemon. This is^ however, hardly 
borne out by observations made in other 
localities. 
Present indications are that a very 
large per cent, of this year’s crop of 
grapefruit will be unmarketable on ac¬ 
count of scab. 
