The branch-eating beetle damages pistachio wholesale pistachio trees during puberty
And by attacking and feeding on the buds of trees causes the heads of the branches to dry out
The tree becomes sterile in terms of yield. Adult insects are small beetle pests
It is oval in shape with a length of 2.5 to 3.5 mm and is brown in color, but the color
The head and back of the first breast and below the abdomen and the spots on the wings are dark brown.
The color of the larvae is milky white without limbs. Maximum larval length up
5 mm is measured. White, transparent, oval insect eggs
Are shapes. Adult insects from pistachio buds during spring and summer
They feed and dig into the branch along the channel bud. With
Surveys have shown that almost 80% of people
Adults feed on only one bud during their lifetime. The number of insects that
During the life cycle, they feed on 2 or 3 buds, which is about 10%.
Therefore, in a long period of 200 days, the regeneration operation is performed
Another study was observed in June and throughout the summer months in
Conditions in Rafsanjan No more attacks on dry wood and with
Tracking the life of this insect has been shown to have only one generation per year
is.
The adult pistachio-eating adult beetle was familiar with the practice
Embryonic pistachio orchards vary depending on temperature and humidity
Lasts up to 19 days.
After hatching, the larvae dig canals in a direction approximately perpendicular to the corridor
Mothers take action. The maximum length of the larval corridor is 25 mm and the minimum is 10
Measured in millimeters. The length of the larval period also depends on the degree
The heat and humidity of the host are different. Larvae of insects
Pioneers are obtained for a longer period than the larvae that hatch
They have a maternal generation in late March and early spring.
The larvae, after completing their development, have a large space at the end of the corridor they have dug
Terry is embedded for pupation and they become pupae in it. the period
Pupation varies for up to 20 days, after which adult insects form holes
The outlets are almost round, with a diameter of 1 to 2 mm, and come out.
The period of one generation from egg to the emergence of a new generation adult insect is a maximum of 193 days
And measured for at least 36 days, which is the average life span of a generation
The pest of the day is equivalent to 4 months.
The departure of the first new generation garden insects differs from late March and early April
Every year is seen in exceptional cases even in February in Faizabad Torbat
Heydariyeh In Khorasan province, adult insects have been observed (but the percentage of departure
These people are very low. From the third decade of April, the number of people leaving gradually
The new generation has decreased and reached a minimum in the first half of June, from 20
June will be cut off in general. New generation adult beetles mostly to
Fly to nearby gardens and after being placed on pistachio branches
It begins to feed on the bud of the tree and along it, as it was said
They dig a canal inside the head of the branch. Therefore according to
The above-mentioned cases, the emergence of new generation garden insects and their invasion and attack
Gardens are done at intervals of 70 days.
The number of buds that are attacked on the branches of a tree
The number of spheres seen was 25 and at least one. Also until now
A few cases of attack and feeding familiarity with the operation and had with pistachio
The adult type of the insect has also been observed from the pistachio axis and cluster.