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As the last petals drop, then the Plum Sawfly larvae
tunnels into the emerging frit of the plum tree. After being fully fed,
the larvae then drops to the ground, forming a cocoon - using earth
particles so difficult to find!
It remains in the ground at a depth of around 5-6 cms,
then pupates in February-March, ready to emerge as an adult Sawfly - in
March - April, the female ready to lay its eggs in the Plum Blossom.
Affected fruit drop and fall to the ground, where the life cycle of the
Plum Sawfly continues as above.
Affected fruit will typically have 2-3 small holes.
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