In recent years, the rice leaffolder is almost recurrent every year. Since the end of June, a large number of foreign insects have moved in. In the case of continuous rainy weather, it is beneficial to the migration of rice leaf roller, resulting in the growth of early rice. In the middle and late period, the damage is often suffered, and the white leaf rate is generally about 20% to 25%. The year of occurrence is as high as 60% to 70%. Even the whole field leaves are whitened. If the control is not timely, it will be especially good for early rice, especially late-season rice. Cause major losses.
Prevention and control of rice leaf roller should adopt the strategy of “treat early and cure smallâ€, grasp the insect conditions and weather characteristics, and apply pesticide before the third instar of the larvae (ie, the initial tip of the leaf tip) to reduce the occurrence of base and reduce the pressure of prevention and treatment in the later period. It is necessary to grasp the appropriate period of prevention and control. As most of the current pharmaceuticals have poor control effects on older larvae, especially pesticides such as insecticidal double-defective Nereistoxins, the prevention and treatment time should be advanced to the peak of egg hatching to the peak of young larvae. Generally, 15 or more new leafhoppers were started to control the larvae at the age of 2 or 3 larvae or per hundred clumps. In the years of early entry and large amount of rice leaf roller infestation, it is more timely to use drugs to prevent rice leaf roller pests in the later rice period, which not only controls the hazards of early rice, but also reduces the local insect resources and reduces The pressure of prevention and treatment in the later period (that is, the "pre-government control" strategy).
To control the rice leaf roller, we must choose the high-efficiency medicine for the mouth, spray it evenly at the first leaf stage of the rice leaf or 2 days after the egg hatching peak. The pesticides that can be selected are: chlorpyrifos (48% Lactose EC) 60-100 ml; Fipronil (5% Frigoxysin Suspension) 40 to 50 ml; 10% Furanphrani Sulfate Suspension 100 to 120 ml; 40% Profenofos Cream EC 100 to 120 ml; 50% Monosultap Wettable 100 ~120 grams; 18% of insecticidal double water 300 to 400 ml. After spraying Privet, the larvae of older rice leaffolders will not die immediately, but the amount of leaves will be greatly reduced or even leaves, the long-term period of up to 24 days, also compared to the new leaves after treatment A good protection, 12 hours after the spraying of rain does not affect the control effect; spraying time does not require water, but requires a full amount of water spray, spray wet rice leaf spray, should not use the mist spraying machine. By mid-July, most of field larvae have entered the advanced age stage for the control of this generation of rice leaf roller, and it is difficult and costly to control drugs. If the number of leaf curls and white leaves in the field is significantly increased, it can be used. High doses of avermectin and other agents were sprayed for one time to reduce the harm of rice leaf roller. Spraying can focus on spraying the damaged leaf, spraying wet, penetrating.
In addition, the current new drugs for controlling rice leaffolders include 5% buteneflupron emulsifiable concentrate, flufluxthrin (also known as XeroxBao, silicon bran), and emamectin benzoate as alternatives. Pesticides for high-toxicity pesticides to control rice leaf roller can be applied according to market requirements according to technical requirements.
Germany imported beads
Imported French lens
mould Die-casting Eight edge type Revolving arm
Optional emergency power supply≥3 hours
The main features:
1)Ideal cold light effects
Using the new LED cold light source, ensure energy saving and environmental protection and long service life up to 80,000hours and more.
The temperature increase of surgeon`s head below 1℃. LED do not engender infrared ray and ultraviolet radiation, without the temperature
rise and tissue damage caused by halogen shadowless light, also it can accelerate the wound healing after surgery, and without Radiation pollution.
With color temperature constant and soft, LED is very close to the sunshine.
1) Excellent shadowless effect
Lamp with the most scientific radian and Multi point light source design, ensure better uniform illuminance. When the lamps are partially occluded,
also can achieve perfect shadowless effect.Lamp panel radius of gyration ≥182cm, the lamp can be pulled to vertical floor, convenient to any angle illumination.
2) Excellent deep lighting
It is based on modularize method by Computer Aided Design, focused to irradiating with more beams of LED. It produces the deep lighting which beams
more than 1200cm,the illumination of center up to 180,000Lux or more, and offer the color temperature that can be adjusted from 3700K to 5000K which
is close to sunshine. Absolutely, it really reflects the color of human tissue and satisfied by all kinds of operating light needs.
3) Advanced control system
The use of liquid crystal display button control, to meet the needs of the medical staff of different patients with the brightness of the operation.
It offers illuminance memory function.
It does not effect using when a single circuit or one bulb is broken.
4) Universal suspension system
Rotating arm, a new type of alloy material is made of eight edge type.
Balanced system using imported arm module, more than 5 group universal joints, every cantilever must has more than 3 joints which can be rotated in 360°,
The structure is light, easy to manipulate, accurate positioning, can provide the maximum range of regulation.The equipped with fatigue correcting unit and
fix position hand handle device, easy to fix position after long time use.
5) Modern laminar lamp
The thickest part of lamp-chimney is not more than 10cm.
The lamp-chimney is made of ABS, The handle on the central of lamp can be detachable, can take high temperature (≤ 134°C) sterilization treatment,
easily adjust, flexible fixed.
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