il Vol.2 JULY, 1943 ' No.4
 
W. D. ARMSTRONG, Horticulturist, Editor
HORMONE SPRAYS from dealers and should be used
_· as recommended by the manufac-
  The use of the hormone sprays to turer, or summer oil may be used
  prevent preharvcst drop of apples for this purpose, at the rate of one
? has proved to be profitable on _va- quart to 100 gallons of spray. Tests
  rieties that have this fault. Delicious show savings of as much as 5 bushels
T  is especially subject to early drop. per tree.
-_i  The spray is not recommended on Growers should give special at-
  varieties not subject to drop. tention to the need for hormone
 T The spray should be applied about Sprays thrs year; Smee they reduee
2  10 days or 2 weeks before the nor- the hazard or drcppmg and wil
 · mal harvest date. Hormone spray SWE 3 l0¤g€1‘ period to safely pick
 y marenais are nandied by all me the frwt when 1¤b¤r is apt to be
§  leading dealers in spray materials Scarce-
  and should be used at the rate ....1.--
  recommended by the manufacturer.
·L Usually, one spray is sufficient. The BITTER ROT OF APP]-ES
  spray should be thorough and with
  good pressure' W. D. VALLEAU
 . The effectiveness of the spray de- Bitter rot occurs during periods
 __ pends on adequate coverage of spray, of high temperature and high hu-
 Q proper timing (too early or too late midity at any time during the grow-
—— ~· may be ineffective), and the season ing season after about the fifteenth
 j (severity of dropping varies with of June. Experienced growers are
 Q the weather). The use of a spreader familiar with the numerous pin-
-· and sticker also helps to improve point brown spots on_the surface
 1 the effectiveness. These are available of the fruit which rapidly develop
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Exten-
BULLETIN OF THE KENTUCKY AGRICULTURAL EXPERIMENT
STATION, LEXINGTON, KENTUCKY
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