Phoenix wood is hailed as one of the most colorful trees in the world. Its name comes from bright red or orange flowers combined with bright green pinnate leaves. It is often planted in Guangdong, Fujian and Sichuan. Phoenix wood has fewer pests and diseases, but noctuid insects are common. The prevention and control measures of the insects of the phoenicopterum xylostella are described below and are available for reference.
1, morphological characteristics
Adults: body length 17-22mm, wingspan 33-48mm. The head and chest are gray-brown and the neck plate has 2 brown horizontal lines. The abdomen is gray-brown, with dark bristles on the back of the third, fourth and fifth quarters.
Eggs: green, slightly hemispherical, with the bottom adhering to the leaves, with 40 longitudinal ridges on the surface of the egg shells.
Larvae: Aged larvae are 44-60mm long and about 4mm wide. There is a layer of white powder on the back of the body, and some of the red valves on the back line are brownish in the abdominal part. There are 1 black-brown irregular patches on the abdomen behind the first to the eighth throttle respectively.
Cockroaches: 17-26mm long, dark brown, dark brown when near feathered. The thorns are long, with two pairs of brown hooks bent to both sides at the ends, and one short hook on each side to the inside.
2, the law of occurrence
Phoenix wood nightingale occurred in Hainan during the 1st 8- to 8th generation. It lurked during the day in a dark place above the ground. At rest, the wings spread out and lay flat on the resting objects. Adult phototaxis is strong. In the early stages of the outbreak, eggs were concentrated in the upper part of the canopy, forest margins, and high-lying forest lands. Most of them were scattered on the back of the leaves, and the amount of eggs per woman was 870-1270 grains. From 4 to 8 o'clock, the larval hatching peak period, the newly hatched larvae eat egg shells.
When the leaves are about to be consumed, there is a cluster shifting habit. When the larvae start to crawl, they quickly crawl or droop, and the last-instar larvae can bounce off the ground. When they inhabit, they arch into a bridge. After peeling, they can eat the old fish. Mature larvae grow on the host tree, or climb on other trees and weeds. From May to June, persistent high temperature and dry weather often caused the worm to occur.
3, control methods
Forestry Prevention and Control: In the process of afforestation, A. sinensis can be afforested with ribbons, grafted in time, and carefully managed for loosening and pre-grafting, in order to curb the pest reduction.
Artificial control: Manually squeezing the larvae of the moth-free moth in a nursery. Most of the adult insects of the light-spotted Noctuidae have phototaxis and can be trapped by light.
Biological control: Protection and utilization of natural enemies, such as ants, ladybugs, wasps, wasps, drosophila, grasshoppers, beneficial birds, woven birds, and other natural enemies in nurseries and woodlands must all be protected and utilized.
Chemical control:
(1) The young larvae may be sprayed with 50% acaricidal pine oil 1000 times, or 50% dichlorvos 1000-1500 times, or 40% dimethoate, or malathion EC 800-1000 times, or 75% phoxim EC, or 50% parathion EC 2000x, or view % enemy 100% by crystal 1000-1500 times, or 40% aqueous methosulfate emulsion, or 50% methamidophos emulsion 500-1000 Diluent, or 25% carbohydrate wettable agent 1500 times, or 2.5% fenvalerate, or 20% fast kill Ding EC 3,000-5000 times, or 10% cypermethrin EC, 150-300ml per hectare , Or diarrhea on the 3rd 20% rubber suspension 2000-3000 times solution.
(2) For larvae in humans that have been paralyzed, use 50% monocrotophos EC, or 40% omethoate EC 10 times, or use 50% Caesarean Losin or 50% Dibromo Phosphate EC A 40 times liquid smear victim.
The new high performance precision gimbal stabilization system ZYX-GS from Tarot provides dedicated independent gimbal control to efficiently and effectively stabilize your AP/AV shots and ideally matched to our new PTZ gimbal and other 3rd party gimbal providers. The ZYX-GS features 3-axis stabilization, adjustable gains (PC), attitude locking and attitude following modes, 3-axis MEMS gyro and accelerometer, free firmware upgrade services. Offering a wide range of servo support and an unbeatable price point, Tarot hopes to continue its trend of supplying quality products to the Heli and Multi-rotor markets at the lowest possible price.
ZYX-GS provides two kinds of stabilization control mode, which are attitude locking mode and following (FPV) mode. These make the users` aerial filming applications more flexible and convenient. ZYX-GS has different control algorithms for position servos and velocity servos (no potentiometer), this advantage allows people to choose suitable control mode according to their servo type.
The gimbal stabilization system ZYX-GS uses high specification 3-axis MEMS gyro sensor and 3-axis MEMS accelerometer sensor. The advanced attitude algorithm`s updating rate is up to 800Hz, which can sense gimbal`s attitude quickly and accurately. The control algorithm is optimized for aerial filming application, adapted to harsh climate, and provides steady performance for gimbals.
Tarot Flight Control,Flight Control System,Drone Controllers,Uav Flight Controller
Dongying Youjia Industry & Trade Co. Ltd. , https://www.uav55.com