Today's green food has become the mainstream of food, but in actual production, especially in autumn, mushroom farmers use a large number of chemical drugs in order to control insect pests, which makes mushroom products a large number of residual drugs, which not only causes hidden dangers for consumers, but also blocks the health of consumers. Mushroom products have entered the market, especially in the international market.
So, how to prevent “green†pests? There are two measures:
The first is to strengthen physical prevention. Measures include: The construction of mushroom sheds should be kept away from toilets, rubbish, dung and other places, so that the environment is less insects or no insects; the raw and auxiliary materials are exposed to strong sunlight, to avoid carrying eggs or live insects; the vents and import and export of mushroom sheds, etc. Enclose the insect nets and sprinkle lime barriers at the vents and entrances and exits to prevent reptiles from entering.
The second is a reasonable choice of drugs. Within a certain distance from the shed, insecticides such as trichlorfon and dichlorvos may be used to cut off pests. Out-of-shelf and vents, imports and exports, use high-effective low-residue drugs to spray, to prevent reptiles from entering. Green bio-medicines are used in the shed to effectively repel insects. The mechanism of action of the drug is to use insecticides that are not favored by the adults of the mushrooms and insects of the genus Mushrooms to repel them, so that the adults do not dare to spawn and are afraid to enter the shed, and thus cannot be harmed. How to use: Generally in the autumn, spray once every 2 to 3 days, suitable for 200 times the concentration, the environment is poor, the population density is high, the concentration can be increased to about 100 times, or reduce the interval between drug use to 1-2 days.
Right angle prisms are optical elements having at least three polished faces inclined relative to each other at 45-90-45 degrees. They can be used as total internal reflectors, hypotenuse face reflectors, retroreflectors and 90 degrees beam benders.
Various HR or AR coatings are available specified in the Coatings section. Custom fabrication also available: coating, cutting, edging, drilling according to your specification.
Substrate options include N-BK7, H-K9L UV Fused Silica, N-SF11, Calcium Fluoride (CaF2), Germanium (Ge), or Zinc Selenide (ZnSe).
A: To deviate the light path by 90° or 180°.
B: Used in Telescope, Periscope, Microscopy, Medical Instrument and other optical system.
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