Pear

Stem borer

Symptoms of damage

Bore hole at the base of the stem with circular particle mat covering

Wilting of tree.

Identification of pest

Larva - Stout caterpillar.

Adult - Big, brownish white moth.

Management

Remove and destroy damaged branches and tree

Use light trap 1/ha to attract and kill the adults

Iron hooking – locate the bore hole and kill the grub

Drench the stem with Chlorpyriphos 20 EC @ 2.5 litres in 250 litres of water (during February- March and September- October)

Aphid

Symptoms of damage

Yellowing of tender shoots

Management