How to control pear tree pests? These small measures are simple and practical
Pear fruit borer. It has 2-3 generations per year and has the habit of moving between buds and fruits to cause damage. At this time, the pear fruit borer is inside the dead flower stalks. When the young fruit develops to the size of a thumb, it moves to damage the young fruit. One larva can damage 1-4 young fruits, so systemic insecticides such as 40% Haolaoli should be used for control. Oriental fruit moth...
Pear fruit borer. It has 2-3 generations per year and has the habit of moving between buds and fruits to cause damage. At this time, the pear fruit borer is inside the dead flower stalks. When the young fruit develops to the size of a thumb, it moves to damage the young fruit. One larva can damage 1-4 young fruits, so systemic insecticides such as 40% Haolaoli should be used for control.
Oriental fruit moth. Also known as the oriental fruit moth and peach tip borer. It has 4-5 generations per year. When peach and plum trees are planted around pear trees, it generally causes damage within the peach and plum trees, mainly damaging tender shoots, so the damaged pest shoots should be pruned off.
Pear stem sawfly. Also known as the tip-boring insect and head-cutting insect. It has 1 generation per year. At this time, the adults begin to lay eggs and cause damage. When the new shoots grow to 10-15 cm, they saw the shoots at 6-7 cm on the new shoot and lay eggs there, so insecticides should be sprayed to control the adults, and the damaged shoots should also be pruned off, cutting 3-4 cm below the saw cut.
Pear fruit sawfly. It has 1 generation per year and mainly causes damage during the 1-month period from the flowering stage to the young fruit stage. At this time, the larvae are generally inside the calyx, so systemic pesticides should be sprayed for control. A mixture of 40% Haolaoli plus 2.5% Huifeng permethrin can be used for control.