Bayberry fruit fly is one of the common pests in the production of bayberry in China, and the main harm is the ripe or ripe fruit. If it is not prevented and controlled in time, it will significantly reduce the commercial fruit rate of bayberry, which will seriously affect the economic benefits of fruit farmers, of course, in the process of prevention and control, it is also necessary to use drugs rationally to avoid drug harm and bring hidden dangers to the safety of consumers' consumption. The scientific prevention and control measures of the bayberry fruit fly are briefly shared with you.
Pathogenesis of arbutus fruit fly
There are four species of fruit flies that harm bayberry, namely Drosophila black-bellied fruit fly, Fruit fly Pseudo-fruit fly Takahashi and Imi fruit fly, which mainly occur on the 9-10 ripe arbutus fruit and during storage after picking. Bayberry fruit flies can be active all year round, overlapping generations, and there is no strict wintering process. Adult life rhythms are obvious, early morning and dusk are peak periods of activity, and no one is active at night.
Generally starting from the change of color of bayberry fruit, fruit flies migrate from nearby melon fields, vegetable fields and raspberries and other plants, and the number of insect mouths on ripe fruits 9-10 gradually increases. The fruit damage period is 10-20 days, 2-3 fruit fly development cycles, and then transferred to other melons and vegetables to continue to be pest. In heavier bayberry orchards, fruit fly eggs are hidden in or between the fruit columns and are not easily detected by the naked eye.
Methods of control of bayberry fruit fly
1. Pruning of Qingyuan
30 days before picking the bayberry, the garden was cleared, and the pruning, deciduous leaves and weeds of the bayberry garden were concentrated outside the bayberry garden to be burned, so as to reduce the insect source base and reduce the occurrence of bayberry fruit flies. At the same time, the grounded fruit is cleaned up, and the physiological falling fruit before the ripening of the bayberry and the rotten fruit of the ripening period are selected, and sent out of the biogas pond outside the garden or buried deeply at a certain distance.
2. Inducement control and prevention
These include food traps, sexual lures, and frequency-vibration insecticidal lamp booby traps. Through research, the more attractive food attractant formula, that is, 5% rice vinegar + 5% brown sugar + 1% flavor + 0.01% methyl vitamin salt granules, lures more adult worms than other inducement methods, and the insect fruit rate is significantly reduced.
3. Biological prevention and control
The use of natural enemies of Bayberry Fruit Fly to control its number of pests is an important part of green prevention and control technology, bayberry fruit fly natural enemies are: birds, ants, insectivorous flies and other predatory predators, parasitic bees parasitic natural enemies and microbial natural enemies.
4. Rational use of drugs
After cleaning up the bayberry garden in mid-to-late May, the ground spray treatment was sprayed with 50% octylthion emulsion 1,000 times, and the hard seeds of the bayberry fruit were colored into the mature stage, and the 1.82% amine permethrin smokant was used to mix water with 1:1, and the ground was sprayed with smoke spray machinery once to kill adult insects.
In general, the fruit fly hazard period is in the ripening stage of bayberry fruit, which is not conducive to chemical control, so it is generally necessary to pay more attention to green prevention and control technologies such as agriculture, physics or biology. Even if chemicals are used, they must be applied strictly according to the instructions for use to avoid drug harm.