The beetle that is used to kill flowers before and after the flowering of the apple has two kinds, the apple beetle and the blue beetle. Adults eat flower buds, petals, stamens, and pistil, so that they can't hold fruit and have a large impact on production. In recent years, the Hanfu Apple Orchard in the surrounding areas of Shenyang has suffered a great deal, causing a huge loss to the large farmers. Several parks such as the Jindesheng Orchard in Dongling District of Shenyang City explored the best way to control the flowering chafer during the whole year. After three consecutive years of observation, the author discovered that the essentials are simple and easy to handle, and the prevention and control results are excellent. Creation.
1. The control of beetle damage characteristics during the flowering period Scarab's era and the day and night movement discipline are the main basis for prevention and control. The beetles produced during the flowering period are mainly wintered in the soil in the adult state. When the 10 cm soil temperature reaches 10°C, the beginning of the excavation damages the soil. The orchards on the hillside, floodplain, and highways benefit the most. These scarabs have fake passing and clustering characteristics. Pintosaurid beetles are about 10 mm in length and 5 mm in width. All of them except the elytra and scutellum are smooth and glabrous. They are densely covered with yellow-white fine hairs. The Shenyang area was unearthed in late April. It can be harmed from 7 am to before and after sunset, and it is the most abundant food before and after noon. The small blue-flowered chafer has a body length of 13 to 17 millimeters, a dark green color, a black head, compound eye and tentacles dark brown, 1 generation of 1 year, and an adult exhumation exercise in April and May of the following year. In a good day without wind and high temperature, it was taken from 10:00 am to 4:00 pm. The flight was the strongest, and it was a type of night.
2. The prevention and control measures will create conditions that are not conducive to the occurrence of damage to beetles and will prevent them from breeding. When applying autumn basal fertilizer to apples, be sure to use the fully cooked earth-fertilizer. As the unrefined earth-fertilizer contains large amounts of eggs and larvae of chafers, the eggs and larvae of the department can be killed after being decomposed at low temperatures. It is also advisable to plow the entire park once, combine the weeds, and liquidate the entire park and damage its overwintering occasions. Before the adult was unearthed in the spring of the following year, the entire park was again stroked. This allowed the earth room that damaged both the larvae and the maggots to reach a progressive warmth and protect the earth and enhance the fruitful development of the fruit tree roots.
The film was strongly reflective and repelled from the beetle. The management staff did not intend to invent the joint flowering period between the laymen to eliminate the damage of the apple flower chafer during the above-mentioned operations. Therefore, the following methods are accepted: ridging membranes are arranged between rows of fruit trees, and dwarf cash crops such as peanuts are planted on ridges. When the peanut broke out and the film breaks, the flowering period of the apple has passed and the consequences of the control of the beetle are reached. In the past three years, the author observed the adjacent garden covered gardens and the uncoated gardens under unified governance. The effect of the invention was that the benefit rate of the top flower buds of the mulching gardens was 3% to 6%, as long as the individual trees at the park benefited but not covered. The benefit rate of flower buds on membrane gardens was 43% to 67%, and individual trees even reached 100%, resulting in an outbreak. The yield per plant in the filming garden was between 21 and 27 kg; the uncoated garden was between 8 and 12 kg. It can be seen that the film is covered under the flowering tree and the consequences are obvious. The reason for the analysis can be that after laying the film, it blocks the evaporation of water, causes it to condense into small water clusters under the membrane, eliminates transmitted light, and adds reflected light. Under the intense longwave of comfort, the scarab can't get into the field.
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