Biological habits and harm of flies
How to manage flies will be carried out in the following aspects.
Biological characteristics and hazards of flies inspection flies treatment
Brief introduction of flies
Flies hazard inspection site isolation measures
life cycle
Physical control
Reproductive habit
Chemical control
Eating habits
Monitoring work
Biological characteristics and hazards of flies
1 brief introduction
For thousands of years, different kinds of flies have been affecting human happiness. Flies and mosquitoes belong to the Diptera, they have only one pair of useful wings. According to statistics, there are 64 species and 34 thousand and 8 species of flies in the world. The main flies include Musca domestica, Musca domestica, Musca domestica, Musca domestica, etc. The common housefly is a pest that spreads all over the world.
B. larvae
Fly larvae are white, legless, cone-shaped, and the head is narrowed (also known as maggots). Depending on the temperature and quality of food, larvae need three days to several weeks to complete three instars when they enter the incubation medium. The larvae then migrate to a more dry and cool place to pupate
C. pupa
Pupation usually takes place in the dry area of soil / fertilizer, and flies larvae bury themselves in the depths of 3-30cm. The pupa is about 8mm long and formed from the last larva skin.
The fly pupa is a barrel shaped with round ends. At first it was pale yellow, then deeper and reddish brown, and finally turned dark brown or black. Before becoming adult, it takes about 3 to 28 days to pupa
D. adult
For the most common housefly, the adult is about 5-8 mm long. Females are usually larger than males, with red eyes and siphon mouthparts. There are four longitudinal dark stripes on the back of the breast. The last leg is the taste organ. The lower surface of male flies is yellowish.
The sex of flies can also be judged by the distance between the eyes. The female eye spacing is almost two times that of the male. Adults of flies can live for one month. They fly very well. They can be widely distributed by means of airflow, vehicles and animals.
Usually, adults are abundant near breeding areas. Under certain circumstances, they can migrate to 6 kilometers away, but usually they do not fly more than 2 kilometers
Houseflies can't eat solid foods directly because their mouthparts are licking and sucking.
If the food is solid, the fly will first vomit the pouch solution to dissolve it, and then use the mouthpiece to suck the liquid food. This eating behavior causes light spots on the surface of flies, called flies.
To sum up, we can conclude that the problem of flies is, in the final analysis, the issue of hygiene. Then, how can we get rid of the trouble of flies? In the next lesson, we will introduce how to check the flies in detail. Only when we know each other well, can we survive a hundred battles. After we have mastered the biological habits of flies, we will see how to carry the old nest of flies. See you next time.
Biological characteristics and hazards of mosquitoes
This tutorial will teach you how to manage mosquitoes. We will start with the following aspects:
Biological characteristics and hazards
Mosquitoes
Mosquito treatment
Harm of mosquitoes
Inspection content
Insecticide
Species of mosquitoes
Checkpoint
Adult insecticides
life cycle
Product recommendation
Feeding behavior
Monitoring and follow up
Biological characteristics and hazards of mosquitoes
brief introduction
Globally, mosquitoes may have greater impact on human health than any other insect. Mosquito-borne diseases are endemic in more than 100 countries, causing more than 300 million infections and at least 700,000 deaths each year. Mosquito borne diseases, such as malaria, cause serious economic and labor losses to the country. WTO data showed that nearly 214 million malaria cases occurred in 2015, killing 438000 people.
卵：
单产或者集成卵块浮于水面；2-3日孵出孑孓，卵的发育进度受环境及蚊虫种类影响。
按蚊：雌虫很久约产下50-200个琥珀色或黑灰色的卵，卵为船形，有浮囊，另一人人独立空间浮在水表面。
库蚊：卵结集为救生艇状，超过 300粒卵结集在到一起；
伊蚊：卵单产，可以应用空气干燥的生态环境，以滞育卵越冬
若虫（孑孓）：
生话在池中，但应该贴紧表面上从外部环境提取气流，有些人可能从树木的海底区域提取氢气。孑孓在4-10天内会经历过4种性命性状。
按蚊孑孓不足感受不到管，身心需持平贴于家用水表；库蚊与伊蚊孑孓身心与河面连成一片定的角度看。当备受对外部打扰时，伊蚊孑孓在行动变慢，而库蚊孑孓影响攻击力，手机移动迅猛。
Pupae:
Enlargement of the head and chest is enclosed in the protective sheath, and the respiratory tube extends from the dorsal side. Most mosquitoes have smaller pupa density than water. Therefore, when the pupa is not in the swimming state, it will float on the water, and the respiratory tube will reach out to get air. The pupa respiratory tube of Anopheles mosquitoes is shorter, while that of Aedes and Culex mosquitoes is longer, but the pupa abdomen end of Culex mosquitoes is shorter. The shape of the pupa lasts for one to two days, after which the adults break the pupa and stay on the pupa shell for a period of time until they can fly.
Adult:
Mosquitoes can easily be distinguished from other flying insects. They have long and sharp beaks, and the posterior margin of the veins is scaly. Male mosquitoes usually emerge first, gathering in groups near the water surface, and mating with female mosquitoes after emergence, usually at dusk. After mating, female mosquitoes must take blood to produce the fertilized eggs. During the development stages of mosquitoes, only female mosquitoes were found to suck blood, and the mouths of male mosquitoes were degraded, which were not suitable for blood sucking. Therefore, male mosquitoes usually feed on nectar or juice from outdoor plants.
Anopheles mosquitoes: mostly grey body, wings with black and white spots, abdomen tilted when static, body and beak in a straight line when resting, but in an angle with the landing surface. Culex: the body is mostly yellowish brown with no spots on its wings, and the body has a angle with the beak when it stops.
Aedes mosquitoes: 1-4 segments of the hind tarsus have basal white rings, the last segment is white, 2-6 segments of the back of the abdomen have basal white bands, the body and beak have an angle at rest.
Feeding behavior
Some mosquito species like to bite humans, known as Haemophilus anthropophagus; others like to bite mammals, birds and amphibians, known as Haemophilus zoophilus.
Body odor, sweat, temperature and carbon dioxide are important factors for the host to attract female mosquitoes.
Female mosquitoes will enter the rest after a full meal, so that the blood is fully digested, ovaries are developed, ready to lay eggs. After laying eggs, female mosquitoes will continue to suck blood from their hosts to produce the two batch of eggs.
