Citrus orange seedling disease has occurred in citrus nursery all over the country. It is one of the common diseases. Severe onset often causes seedlings to die.
Cixi Air-Fluid Company 'BSPP Thread Metal Pneumatic Push in Fittings with below characteristics:
BSPP Thread Introductions :
The British Standard Pipe Parallel (BSPP Threads
)have the same diameter from end to end ,A
parallel thread typically seals with use of an o-ring or Back Washer to seal
the fittings ,no use of Anaerobe. The sealing ring (O-ring) can be easily
replaced if it is damaged or hard-worn with time. Connection and
disconnection of the tube can be repeated and can be performed using one hand ,
no other tools required .
Thread
Connection : Range
from BSPP 1/8" to 1/2"
Push-in
Connection: Range
from Inch Size 5/32" to 1/2" OD & Metric Size 04mm to 16MM
Configurations
Includes: Straight , Elbow , Branch
Tee ,Run Tee, Long Leg Male Elbow and Speed Control Valve .
Metal Pneumatic Push in Fittings BSPP Metal Pneumatic Push In Fittings BSPP, Pneumatic Push In Fittings, Metal Pneumatic Fittings Ningbo Air-Fluid Pneumatic Components Co., Ltd , https://www.air-fittings.com
First, the onset of symptoms of seedlings damage the tender stems, tender shoots or young leaves, the incidence of tissue water stains at the beginning, after the turn light brown to dark brown sickness. If it occurs in the young shoots, the entire new shoot will turn dark brown and die. The invading bacteria from the base of the young stem can cause the stem base to rot and stand dead. The pathogenic bacteria invaded the leaves or shoots and petioles spread to the leaves, forming dark greenish water-spotted small spots at the beginning, and rapidly expanded to form ash-green or dark-brown nearly round or irregularly shaped large spots.
Second, control methods
1. The seedlings and lands are selected for the nursery bases with high topography, loose soil, good drainage, and convenient irrigation. Nursery preparation should be detailed, basal fertilizer should be fully cooked.
2. Strengthen the management of seedling planting or transplanting can not be too dense, keep well ventilated, planting nursery cover the use of clean sand, can not use fertile vegetable garden soil; rainy season to remove water in time, fertilization to thin fertilizer is appropriate, can not be used For mature fertilizers, check the nursery frequently and find that the diseased plants are eliminated in time and burned in a concentrated manner.
3, after the drug control to remove the diseased plants, immediately spray once, after every 10 to 12 days, spray a drug, a total of 2-3 times, can be used 58% of thirams hammer zinc wettable powder 600 800 times; 64% Antivirus WP 500 to 600 times; 80% to 45 WP; 600 to 800 times; 70% ANTHP WP 600 times; 0.5% Bordeaux and other spray control. 