The Delta independent., 1906-06-22
THE GREEN APHIS.
An Urgent Request From Fruit In
speetors to Spray Against II.

DEleI HE HlSIOIy VI VIC nPnso Va
the Apple, Peach and Plum tree.
1t is well to say on the start that the
Green Aphis of the Apple, Plum and
Peach trees, while belonging to the
same general family and while their
life history is the same they differ
somewhat in appearance and much in
habits and choice of host plant. That
is to say the apple Aphis is never found
on the peach or plum tree or either OF
these on the apple tree-each to its
host plant, the apple aphis on the ap-
pie, the peach aphis on the peach and
SO with the plum. They will die II the
kind Of host plant is changed. Every
aphis of the above kinds now alive is q
female. The young now produced are
born and they are all females and will
all be females till the last brood in the
fall and that brood will be about evenly
divided, males and females. The next
crop are eggs which are deposited usu-
ally on the small limbs Of that years
growth from which eggs, come all the
Green Aphis for the next year and ev-
cry egg hatched the next spring pro-
duces q female aphis. The eggs hatch
generally just as the leaves begin to
start in the spring. The aphis produced
from the eggs. largely live and produce
young throughout the season. The
young are able TO reproduce in about
eight days from birth. They are the
least liable TO death. and the most pro-
ductive Of all known insect life. Their
reproduction il q continuous factor.
During the winter not an aphis alive
all are dead. The future brood rests in
the eggs. These are minute black OBJ
jects. shining black specks distributed
ever Ii. snail Hmbs. lt Mn ssndilv
b sssa that Whatever win destroy the
eggs. will prove the most successful.
Winter or spring spraying on the eggs
10 the right thing to do.
We come now TO the present phase Of
the Green Aphis. So far in my inspec-
ton Of conditions Of orchards l find the
Green Aphis more abundant in most
orchards than for several years, and
too it generally puts in greatest appear
ance after the middle Of July. So &C
cording to usual conditions there will
be an increase to the already over
abundant pest. II not prevented it is
likely to injure the young apples. and
certainly to large extent injure young
CRAFTS and in many cases kill them en-
tirely. The young trees also will suffer
and in some cases to such an extent as
never to recover. In every orchard and
on every tree having this pest urge
immediate action; spraying with the
following:
Formula for summer use:
Whale Oil Soap, one pound
water, five gallons.
Heat the soap and water till perfect
ly mixed.
This will spray better If perfectly
warm.
l do not find tobacco so effective as
the whale oil soap. The first spraying
should be followed by another within
six days remembering that the young
will reproduce In eight days and that
many are born in the dying struggles
of those aphis hit with the spray, and
those no born are not hurt by that
spraying.
The best time for treatment is while
the trees are dormant, any time after
the leaves have fallen and before the
buds open preferably in early spring.
believe the following formula to be
the best tor winter spraying.
Formula for winter use:-No. I.
Lump lime (good) ......2O pounds
Sulphur. r...............l5 I"
Water. 80 gallons
mo salt)
Stake the lime, preferably with hot
water, In an iron kettle or barrel. and
while shaking. slowly add the sulphur
and stir Il In. Then boil over good