Grower Solutions Magazine
- Dec 2001
The End to Blossom
end rot is a calcium related disorder which can cause
huge crop losses both before and after harvest.
Tomatoes, peppers and melons are very prone to blossom
end rot, particularly when under stress through
difficult environmental conditions or heavy fruit fill.
This complicated condition is linked to several factors
including: Low calcium, boron deficiency, irregular or
over irrigation, high fruit load (carbohydrate
shortage), excess nitrogen or high transpiration.
Sufficient calcium has proven to help reduce the
incidence of Blossom End Rot in all three crops. The
difficulty arises with getting adequate uptake. Even
with good irrigation techniques and controlled nitrogen,
the uptake of calcium can be blocked. This is where
targeted foliar applications can be useful.
Calmabon is a new introduction from Lefroy Valley,
specifically formulated to improve calcium uptake.
Growers of Capsicums, Tomatoes and Melons will benefit
from this with reduced Blossom End Rot and improve fruit
Calmabon has the ideal balance of calcium, boron and
molybdenum in a convenient liquid formulation, reducing
the need for difficult to spray cocktails or multiple
sprays. Calmabon is unique in its high calcium content,
balance and cost effectiveness.
Calmabon has also been used very successfully in
Brassicas to reduce internal cracking and brown bead,
and to reduce tipburn in lettuce.
periods of extreme stress such as high temperatures, we
recommend the use of Vapor Gard (anti- transpirant) to
help plants cope with moisture loss. Mercury - Quality
summer export curds.
Tips For Using
Calcium sprays should be applied
at a slightly acidic pH to
Calmabon is compatible with most
insecticides, fungicides and
foliar fertilisers but should be
checked with a jar test.
Contact and coverage of fruit is
essential, as calcium
translocation in plants is
Calcium sprays should not be
done with low volume sprays as
the majority of product will be
taken up by the foliage.
Calcium uptake can be
substantially improved if
applied with Nu- Film- 17.A
example of Blossom end rot.