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Because the fruit fly is a citrus fruit parasite, it is very hidden, and it is difficult for consumers without professional knowledge to find the insect pest citrus from the surface of the fruit. In fact, insect pest citrus still has certain characteristics, sweet orange lays more eggs in the umbilicus and fruit waist, there are milky protrusions at the oviposition, red orange and vermilion orange are mostly in the umbilicus, and the oviposition is black dots or slightly darker; The grapefruit is on the pedicle, and the oviposition is particularly sunken with black markings. If you can't identify the pest citrus from the surface, you can only find white maggots with the length of a grain of rice if you tear open the flesh with a petal, so it is easy to be eaten by mistake.
Extension of knowledge: The large fruit fly belongs to the order Diptera, an insect of the Drosophilidae family. The adult body length of the large fruit fly is 12-13 mm, and the wingspan is 20-24 mm. The larvae of the large fruit fly, also known as "citrus maggots", can reach 18 mm in length, with nearly transparent ends and conical shape, with a total of 11 segments.
The host plants of the large fruit fly are limited to citrus, with sweet orange and kumquat being the most affected, followed by grapefruit and red orange. The larvae of the fruit fly eat the flesh and tissues of the fruit, causing the fruit to ulcerate, and the fruit turns yellow before it is ripe, and then falls off, resulting in reduced yield.
Consumers should be more careful when buying citrus fruits, try not to eat pest-in-effect citrus, if a large number of pest-in-class citrus appear unwell, should seek medical attention immediately, the fruit fly is a fruit fly, that is, a fly that mainly feeds on fruits.
There are about 1,000 species of fruit flies worldwide. The parasitic fruit flies on different fruits will be different, generally named after the parasitic plants, for example, the fruit flies parasitic on bayberry are called bayberry fruit flies, the fruit flies parasitic on cherries are called cherry fruit flies, and the fruit flies parasitic on citrus are called citrus fruit flies.
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Mealybugs, small sap-sucking insects, belong to the genus Mealybugs, which are distributed worldwide and adapt to various environments. The female is oval, slow, about 1 cm long, and has a white sticky powder on the outside of the body. It mainly harms all kinds of fruit trees, flowers, succulents and other plants, often clusters on branches, leaves, and fruits, and sucks plant juice for life, which will cause plant death in severe cases.
Spray with 25% chlorphylene wettable powder 2000 times, once every 15 days, 2 times in a row.
For the control of Kang's mealybug, choose Licox (40% chlorpyrifos) 1500 times or Long Lile (cyanide chloride chlorpyrifos) 1500 times + silken 3000 times.
When using pesticides, it is best to use them alternately, so as not to cause pesticide damage, spray once every 7 to 10 days, spray 2 to 3 times in a row, and the effect of eliminating the nymphs on the tree is better, pay attention to spray on the scale insects, and evenly spray all the branches inside and outside the canopy, so that there are water droplets dripping down at the beginning.
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The white worm of the trunk of the orange tree is whitefly. The whitefly is also known as the little white moth.
Prevention and control methods: 1. It can be sprayed for prevention and control, and the drug is 600-800 times thistle lice, thistle lice 1 + 1, acetamiprid, matrine), thiamethoxam, dinotefurin, horse emulsifiable concentrate, zinc chloride emulsifiable concentrate, mesolide, kung fu pyrethrin or Uranus, etc.
2. Aphid wasps can be introduced in the greenhouse.
3. Adults have a strong tropism to yellow, and adults can be trapped with yellow plates and coated with sticky shellac to kill adults, but they cannot kill eggs, and it is easy to kill.
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Hello: You can use a drug spray containing propylene ether to control the longhorn beetle, kill the insect eggs, and make it extinct. The specific control measures are as follows: The roots of orange trees are eaten by insects, which are generally caused by the damage of longhorn beetles.
The longhorn beetle has become a major pest of citrus trees. However, the use of plugging wormholes to control longhorn beetles is labor-intensive and difficult. Sail Wild Precautionary Measures:
Combined with pruning and pruning, timely pruning and treatment of insect dead branches; Trees with weak growth are susceptible to the damage of longhorn beetle, so forest management should be strengthened to promote the vigorous growth of trees and reduce the damage. Trees that are about to die or have died are cut down in time before the adults fly out every year, and the dead trees in the forest are thoroughly cleaned and treated. Prevention and control measures:
1. Kill adult insects. Generally in May and July, when the adults are at their peak, it is often checked that the adults are resting on the trees or flying low in the forest. Some adults have feigned death, violently shaking the branches, and the adults fall and hunt.
2. Protect and attract natural enemies. There are many predatory and parasitic predators, such as woodpeckers, magpies and other birds, swollen-legged wasps and other parasitic wasps, geckos and parasitic nematodes, etc., which should be protected and utilized. 3. Implement quarantine.
It is strictly forbidden to introduce dangerous longhorn beetles from abroad, outside the province, cities and counties through logs, packaging wood and insect-bearing trees. <>
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Summary. Hello, I am helping you to inquire about the relevant information and will reply to you immediately.
Hello, I am helping you to inquire about the relevant information and will reply to you immediately.
After the insects grow in oranges, you can use 50% mite emulsifiable concentrate 1500 times, 20% mite instant death 1500 times liquid, 50% Tork 1500 times liquid, 73% gram mite emulsifiable concentrate 2000-2500 times liquid. When orange aphids are found in the tender shoot stage and budding stage, you can choose 50% anti-aphid 1500 times liquid, 20% good winter emulsifiable concentrate 3000 times liquid, 20% imidacloprid wettable powder 2000-2500 times liquid, etc., and various drugs should be used alternately.
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Summary. Most are citrus fruit fly larvae.
Prevention and control methods: 1. Remove and collect rotten melons in a timely manner;
2. Bagging melon protection;
3. Use fruit flies to eat sweet melons and fruits and prepare poisonous bait for trapping;
4. Spraying and killing insects In the peak stage of adult insects, some pyrethroid agents are selected for spraying;
5. Install insecticidal lamps for booby-trapping.
How can there be worms in orange fruits, and how to treat them?
Most are citrus fruit fly larvae.
Prevention and control methods: 1. Remove and collect rotten melons in a timely manner;
2. Bagging melon protection;
3. Use fruit flies to eat sweet melons and fruits and prepare poisonous bait for trapping;
4. Spraying and killing insects In the peak stage of adult insects, some pyrethroid agents are selected for spraying;
5. Install insecticidal lamps for booby-trapping.
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Most are citrus fruit fly larvae.
Prevention and control methods: 1. Remove and collect rotten melons in a timely manner;
2. Bagging melon protection;
3. Use fruit flies to eat sweet melons and fruits and prepare poisonous bait for trapping;
4. Spraying and killing insects In the peak stage of adult insects, some pyrethroid agents are selected for spraying;
5. Install insecticidal lamps for booby-trapping.
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There are eggs in the orange fruit, so after we buy the orange, the worm will grow soon. Therefore, in response to this phenomenon, the oranges we buy back must be eaten as soon as possible, and don't wait for a long time to grow, and the insects will not be able to eat them.
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pesticides, pick the rotten fruit,
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1. Strengthen the management of orange orchards (trees): do a good job in the sanitary environment of orange orchards, clean up dead branches and leaves, reduce the living environment of hosts, and prune diseased and dead branches, dead branches and weak branches in a timely manner. >>>More