In April, 14 o'clock negative mud insects began to harm the field. The fourteen-point negative worm is a Coleoptera, which is also known as an asparagus leaf leaf and a fine neck leaf. Distributed in Heilongjiang, Jilin, Liaoning, Inner Mongolia, Beijing, Hebei, Shandong and other places. Adult larvae feeding on asparagus tender stems or epidermis can cause malformation of asparagus plants or eating into light poles, which is the most serious damage to green asparagus. Its prevention and control methods are as follows:
Agricultural Prevention and Control: In the Qing Sun Garden, the insects were removed, and the litters of the shoots were removed in time in the winter and late spring. The dry stems were removed, and the dried stems were burned to eliminate the overwintering adults.
Chemical control: Spray 5% natural pyrethrin EC 1000 times, 1% celvaculin EC 70 ml/mu, 0.36% matrine water 1000 times, and Qingyuanbao 600 times in the overwintering adults. Evenly spray, the efficacy period of more than 7 days. Spray once every 5-7 days, even for three times, pay attention to the rotation of each agent.
Scanning mode: Electronic array
-Probe element: 96/192E
-Display mode: B, B/M, color doppler version with B+Color, B+PDI, B+PW
Convex head 3.5MHz/5MHz, 90/160/220/305mm, 45mm, 50°
Linear head 7.5MHz/10MHz, 20/40/60/100mm, 40mm
Convex head by phased array(cardiac) scan mode: 3.5MHz/5MHz,
-Image Adjust: BGain, TGC, DYN, Focus, Depth, Harmonic, Denoise
-Cineplay: auto and manual, frames can set as 100/200/500/1000
Puncture assist function: the function of in-plane puncture guide line, out-of-plane puncture guide line, automatic blood vessel measurement.
-Measure: Length, Area, Angle, heart rate, Obstetrics
-Image frame rate: 18 frames/second
-Battery working time: 2.5 hours(according to whether keep scan)
-Battery charge: by USB charge or wireless charge, take 2 hours
-Dimension: L156×W60×H20mm
-Weight: 260g
-Wifi type: 802.11g/20MHz/5G/450Mbps
-Working system: Apple iOS and Android, Windows
3 In 1 Ultrasound Series,Convex Linear 3 In 1 Ultrasound,3 In 1 Wireless Probe Ultrasound,3 In 1 Double Head Probe
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