Premium
Postharvest biological control of Penicillium digitatum decay on citrus fruit by Bacillus pumilus
Author(s) -
HUANG YONG,
WILD B. L.,
MORRIS S. C.
Publication year - 1992
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1992.tb03433.x
Subject(s) - penicillium digitatum , bacillus pumilus , biology , postharvest , orange (colour) , biological pest control , fungicide , horticulture , citrus × sinensis , spore , botany , penicillium , bacteria , genetics
Summary A new antagonist/pathogen combination is reported, with Bacillus pumilus showing strong antagonistic activity against Penicillium digitatum. B. pumilus (1.6 × 10 10 to 1.6 × 10 12 *cfu ml ‐1 ) gave significant control of P. digitatum infection in Valencia orange, which was as effective as imazalil (500 μg ml ‐1 ) and was significantly better than benomyl treatment (500 μ g ml ‐1 ). When lower concentrations of B. pumilus (1.9 × 10 7 to 1.9 × 10 9 cfu ml ‐1 ) were tested on Washington Navel orange and Lisbon lemon fruit, the antagonist caused significant control of P. digitatum infection at two inoculum levels (6.5 × 10 4 and 6.5 × 10 5 spores ml ‐5 ). Concentrations of both the pathogen and the antagonist affected the biocontrol effect.