Pear carp is the most important pest on pear trees, which can damage pear leaves, cause dead spots, weaken trees, and reduce fruit quality and yield. It occurs 4 to 5 generations per year. Adult hibiscus is divided into winter and summer. Winter insects overwinter in the cracks of pear branches, and a few in weeds, deciduous and soil, seriously affecting the quality and yield of the fruit. Therefore, it is necessary to comprehensively control the wintering place.
The Qingyuan cleans up the branches, fallen leaves and weeds in and around the park, buried or burned, which can reduce the wintering pear raft.
Scrape the plastic film on the tree tray, use a knife to scrape the rough skin on the trunk and the lesions such as decay, dry rot, and wheel ridge, and then concentrate and bury it.
Irrigation When the temperature drops below the freezing point, irrigation in the garden can be carried out to drown the wintering pear raft in the soil.
The key period for the prevention and treatment of pharmaceutical agents is the overwintering adult to the spawning period, that is, in March and mid-March. Commonly used agents are 20% methrin emulsion 3000 times solution, 10% Dagong WP 2000 times solution, 0.9% Ai Fuding 3000 times solution, etc., can also cure pear bees, pears and so on.
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SPA-100 Ophthalmic A-Scan/Pachymeter with macular recognition function, can accurately measure axial length, anterior chamber depth, lens thickness, as well as intra-ocular lens calculation.
And also with the central area and the peripheral areas gain automatic compensation capability, accurate measurement of central and peripheral corneal thickness, is widely used in the preoperative examination and postoperative effect evaluation of refractive surgery.
A scan probe: 10MHz import small size probe, built-in luminotron
Measuring range: 15mm-40mm
Measurement precision: ±0. 05mm; with macula lutea trace function
Measurement: Anterior chamber depth, lens thickness, vitreous body length, total length and average
Method of measurement: immersion and contact
Eye mode: Phakic/ Aphakic/Dense/ various IOL
IOL formula:SRK-II.SRK-T.BINKHORST- â…¡.HOLLADAY.HOFFER-Q.
HAIGIS
Enter the name & ID; easy to check archive
Storage: 10 cases, 5 readings each case
Output: A scan waveform and IOL calculation sheet
P scan probe: 20MHZ, angle of 45 degrees makes easier operation
Resolution: 5um
Measuring range: 150um~1500um
Display: SINGLE mode and MAP mode
Can display ultrasound waveform when measuring
Each group is the average of 20 measurements
Switch between IOP measured value and actual value
Can input name, ID and operator`s name
Others:
Large color liquid-crystal screen
Touch screen input, easy operation
Curve freezing: Manual/Auto mode, controlled by pedal
Built-in speed thermal printer
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