Injury characteristics: Adults suck leaf juice, causing near-circular engraved dot depressions. The larvae feed on the upper and lower epidermis of the leaves, resulting in curved and curved tunnels. The tunnels cross each other and gradually merge into one, causing the photosynthetic capacity of the leaves to drop sharply and prematurely fall off or die.
Morphological characteristics: Adults are 2.0-2.5 mm flies with black backs. The larvae are headless pods, milky white to goose yellow, 3-4 mm long, and crude l.0-1.5 mm.蛹 orange to golden yellow, length 2. 5-3. 5 mm.
Living habits: The occurrence period is from April to November, and there are two peaks during the period from mid-May to June and from September to mid-October. Liriomyza sativae is omnivorous and harmful.
Control methods: agricultural measures and chemical control.
1. Agricultural measures: Before weeding vegetables in early spring and autumn, weeds, stubbles, and leaves were completely removed from the vegetable fields, and burned to reduce the source of insects. Before planting, dip the vegetable fields and bury the earthworms on the ground. It is best to apply 3% Miller granules 1. 5-2.0 kilograms of poison killing per acre. During the peak period, the cultivator loosens the fly.
2. Chemical control: The effect of general pharmaceuticals is not ideal. Microbial insecticide Qiqisu is a brand-new antibiotic biocide insecticide with stomach poisoning and contact toxicity, mainly 1.8%, 0.9%, Three formulations of 0.3% emulsion are used at 3000, 1500 and 500 times respectively. In order to improve the efficacy, 500 times more synergist should be added when formulating the liquid, and appropriate amount of white wine can also be added. In addition, it is also possible to use 20% butylthiocarbapod EC 1000 times, or 1.8% ACV 2500x, or 35% BHP, or 2.4% Veroate Microemulsion 1500-2000. Times of liquid, or 2.5% vegetable fly killing cream 1500-2000 times liquid, or 20% more chlorimicarb 2000-2500 times liquid and other agents. Spray once every 7 days for a total of 2-4 sprays.
The Zoom Dome Camera/ Zoom Dome Security Cameras/ Dome Zoom Camera 1080p/ Zoom Dome CCTV Cameras/ Zoom Dome Camera HD/ Zoom Dome Camera Waterproof belongs to both the Zoom Camera and the Dome Camera. I have introduced the Dome Camera before, this time let me introduce the installation skills and the maintenance skills of the Dome Camera for you.
The installation skills of the Dome Camera
1. Get familiar with the product performance
Having gotten the Dome Camera, engineers and users should be familiar with the technical parameters of the Dome Camera, such as the input voltage, power, functions, etc.
2. Check
Before the installation, the Dome Camera should be tested and adjusted to keep the camera working normally.
3. Installation method
Before the construction, according to the environment, safety, and aesthetics, these installation methods can be adopted, such as the wall mounting or hoisting.
4. Installation angle
The installation angle of the Dome Camera can directly affect the scope of the monitoring image, so the Dome Camera should be installed according to the field requirements. For instance, if the Dome Camera is installed at the place less than 6m to the area entrance, the camera angle should be 30°-60°; if it is installed at the cash register, the camera angle should be at ±15°-20°. In short, the backlighting should be avoided when installing the Dome Camera, so as to meet using requirements.
5. Video interface processing
The video signal output port, power input port, and control signal port of the dome camera are very important. When installing, try to do the waterproof and oxygen-proof dealing with the these ports, to avoid those phenomenon happens in the future, such as being unstable, uncontrolled, or even no image display.
The maintenance skills of the Dome Camera
The Dome Camera generally need to work continously for 24 hours, so well maintain the Dome Camera can extend its using life, and ensure the stability of the camera's image effect. The following points should be paid attention to:
1. Pay attention to the stability of the voltage of the Dome Camera, otherwise, it will affect the image effect and even cause the camera damage;
2. Always check whether the wire is damaged or aging, to avoid the abnormal situations;
3. Avoid the long-time direct sunlight or strong light, to avoid damage to the camera CCD;
4. Clean the Dome Camera frequently, such as the camera shell. Try not to open the case, if you need to open it, power off first. Create the Dome Camera files for the inspection and testing in the future.
All in all, I hope that the introduction about the the installation skills and the maintenance skills of the Dome Camera can help the Dome Camera and Zoom Dome Camera users better use their cameras.
Zoom Dome Camera, Zoom Dome Security Cameras, Dome Zoom Camera 1080p, Zoom Dome CCTV Cameras,, Zoom Dome Camera Waterproof
SHENZHEN SANAN TECHNOLOGY CO.,LTD , https://www.sanan-cctv.com