15
F
Tec
h
nical Semina
r
F
New cropprotectionproducts for top fruit
Given t
h
atman
y
conventional c
r
opp
r
otection p
r
oducts a
r
e
b
eingwit
h
d
r
awn f
r
om t
h
ema
r
ket, top f
r
uit g
r
owe
r
swill
b
e
pleased to lea
r
n t
h
at bASF
h
as t
h
is
y
ea
r
launc
h
ed two new
solutions. T
h
ese include t
h
e new integ
r
atedpestmanagement
(IPM) tool rAK3+4 and t
h
e new fungicideSe
r
cadis fo
r
t
h
e
cont
r
ol of sca
b
andmildewon apples andpea
r
s.
T
h
e compan
y
’s f
r
uit and
vegeta
b
le specialist Simon
Townsend tolddelegates
at Ag
r
ovista’s f
r
uit
tec
h
nical semina
r
,
h
eld at
b
r
andshatc
h
, Kent, t
h
at
rAK3+4 is a p
h
e
r
omone-
b
asedmatingdis
r
upto
r
t
h
at
h
elps cont
r
ol t
h
e
populations of codling and
to
r
t
r
ixmot
h
s. It wo
r
ks
by
r
eleasing a
r
tificial
p
h
e
r
omones into t
h
e
o
r
c
h
a
r
d to c
r
eate a cloud
of female p
h
e
r
omones.
“T
h
emales cannot wo
r
k out w
h
ic
h
di
r
ection [togo] to find t
h
e
nea
r
est female and t
h
e
y
lose inte
r
est,
h
encemating is
dis
r
upted,” saidSimon.
he said t
h
at a
b
out oneweek
b
efo
r
e t
h
e fi
r
st flig
h
t of t
h
e adult
mot
h
s, w
h
ic
h
is gene
r
all
y
a
r
ound
b
lossom time, g
r
owe
r
s
s
h
ould
h
ang up one p
h
e
r
omone dispense
r
on t
h
e top one-t
h
i
r
d
of eve
ry
six o
r
seven t
r
ees. he asse
r
ted t
h
at t
h
e s
y
stem is
“ce
r
tainl
y
a ve
ry
good anti-
r
esistance st
r
ateg
y
” and, f
r
om t
h
e
point of viewof consume
r
s
b
u
y
ing t
h
e apples, “t
h
e
r
e a
r
e
clea
r
l
y
no
r
esidues.” he added t
h
at t
h
e s
y
stem –w
h
ic
h
wo
r
ks
out at a
b
out t
h
e same cost as putting on a full codling
p
r
og
r
amme – is also
h
a
r
mless to
b
eneficial insects, can
b
e
usedon o
r
ganic c
r
ops, and
h
as t
h
e
b
onus of
h
aving a useful
effect on awide
r
ange of ot
h
e
r
to
r
t
r
ixmot
h
species. T
h
ese
include t
h
e la
r
ge f
r
uit t
r
ee to
r
t
r
ix (
Archips podana
) and t
h
e da
r
k
f
r
uit t
r
ee to
r
t
r
ix (
Pandemis heparana
).
Delegates also lea
r
ned t
h
at t
h
e p
r
oduct Se
r
cadis, w
h
ic
h
is in
t
h
eSDhI class of fungicides, also offe
r
s g
r
owe
r
s an additional
b
enefit. In t
h
is case, saidSimon, it’s t
h
e fact t
h
at t
h
e p
r
oduct
makes t
h
e t
r
ees’ leavesmuc
h
la
r
ge
r
and g
r
eene
r
. he noted
t
h
at a t
r
ial
r
un at b
r
ogdale Fa
r
m inKent in 2016 s
h
owed t
h
at “it
was ve
ry
appa
r
ent
h
ow good looking t
h
ew
h
ole t
r
eewas
following aSe
r
cadis t
r
eatment. T
h
atmade us t
h
ink t
h
at
pe
rh
apswe s
h
ouldmeasu
r
e t
h
e leaf a
r
ea.” Data s
h
owed t
h
at
t
h
e leaf a
r
ea of t
h
ose t
r
ees t
r
eatedwit
h
a tankmixtu
r
e
containingSe
r
cadis (at 0.3 lit
r
es/
h
a) andDelanP
r
owe
r
e
60sq.cm compa
r
ed to a
b
out 40sq.cm in t
h
e unt
r
eatedplot.
Simon also explained t
h
at Se
r
cadiswo
r
ks andmoves in
seve
r
al diffe
r
ent wa
y
s on t
h
e leaf. Fo
r
instance, t
h
e
r
ain-fast
p
r
oduct’s su
r
face a
r
ea on t
h
e leaf expands afte
r
it
h
as
b
een
r
e-
wetted
b
ecause t
h
e c
ry
stals c
h
ange t
h
ei
r
s
h
ape and
b
ind
st
r
ongl
y
to t
h
e leaf’swaxes. he said: “T
h
e
y
act as a p
r
otective
ThE FrUITGrOWEr •
FEbrUAry 2017
ef
r
uitg
r
owe
r
.co.uk
Ag
r
ovista F
r
uit Tec
h
nical Semina
r
rac
h
el Ande
r
son
r
epo
r
ts
