Current prevention and control of eggplant diseases and pests

The main disease of cotton blight: cotton blight damage fruit, stems, leaves, flowers and Other parts. The fruit on the ground was firstly diseased. The lesions were round and depressed. The diseased part turned dark brown and decayed. The white mycelium grew when the temperature was high. The stems suffered flooding and shrank. When the temperature was high, white mold grew and the upper branches were wilted. Foliar victim, the formation of immersion brown lesions, there are more obvious ring pattern. Chemical control can be used 20 grams Ankega 75 grams 80% Dasheng M-45 plus 30 ml Yunda 120, spray 45 kg of water, spray every 7 to 10 days, even spray 3 to 4 times; also available 75% Chlorothalonil wettable powder 600 times, or 70% mancozeb zinc wettable powder 500 times spray, 50-80 kg liquid per acre, spray once every 7-10 days, even spray 2 ~ 3 Times. Pay attention to alternate use, do not ignore stem base when spraying. Verticillium wilt: Eggplant Verticillium wilt, commonly known as "half-yellow" and "half-crazy," begins to show symptoms after fruit set and grows from bottom to top or from side to side. In the early stages of leaf disease, yellow veins appear between the veins, gradually turning brown, withered on the edges or with the whole leaves yellow; plant diseased leaves developing from the bottom up, early wilting at noon, recoverable sooner or later, later leaves fall off, the whole plant died; roots and stems cut longitudinally, Visible vascular brown or black. At the beginning of the disease, promptly apply 50% carbendazim WP 500 times, or 50% thiophanate-methyl WP 500 times, or 30% DT sterilant 350 times to irrigate the roots. About 0.25 kg per irrigating solution , irrigation once every 7 to 10 days, even irrigation 2 ~ 3 times. Powdery mildew: mainly damage leaves. Mostly from the middle and lower leaves, the disease gradually developed towards the upper leaves. In the initial stage, spotted white filaments and irregular greenish yellow spots appeared on the leaves. After the development, white powdery mildew spots of different sizes were formed, and the marginal boundaries were not clear. After further expansion, it can spread over the entire leaf surface. In severe cases, the front and back surfaces of the leaves are covered by white powder. White smeared material can be seen in the diseased tissue retreat green, after becoming yellow dry. In order to prevent premature aging of plants, late fruits can be topdressed in time; pay attention to reasonable irrigation and drainage in time after rain; strengthen cultivating cultivating soil and promote root growth of plants; promptly remove the diseased leaves and leaves of the lower part of the plant, which will not only reduce the source of bacteria but also facilitate ventilation . Spray 15% triadimefon WP 1000 times, or 40% Fortune EC 4000 times, or 30% fluconazole WP 1500~2000 times, or 40% polysulfide suspension 500~600 times. Liquid, or 50% sulfur suspension 250 to 300 times solution.

The main insect Red Spider: To keep the soil moist, promptly remove weeds and litter to reduce the source of insects. Chemical control can be used 1.8% avicinol EC 1000 times, or 40% chrysanthemum 2000 to 3000 times, or 73% EC 1200 times, or 50% sulfur 200 to 300 times, or 40 % Dimethoate EC 1000 times spray. Locust: It is advisable to take the drug early and control it to the stage of spotting. Chemicals can be used to control 2.5% deltamethrin EC 2000~3000 times, or 50% anti-influx 2000 times, or 40% chrysanthemum EC 2000~3000 times, or 20% rifampin 2500 times spray. Whitefly: The hazard is the appearance of many greenish yellow spots on the leaves of eggplants, and there are black spots on the back of the leaves, which are even connected together, seriously affecting the photosynthesis of the leaves. Insect nets, silver-gray mulches and yellow boards can be added. Whitefly has a negative tropism towards silver grey, so silver-gray mulch can effectively repel whitefly. Whitefly has occurred, can use the whitefly to yellow yellow tactics trapping. Chemical control can use green vegetables Po, Suining each one 15 kg of water spray. Plant growth conditioners such as Fengshui No.1 and Yunda 120 can also be sprayed to alleviate the adverse effects caused by insect pests. Liriomyza sativae: adult females feed and spawn on plant leaves, and larvae invade the leaves and petioles, resulting in serpentine white worms. The chlorophyll is destroyed, affecting photosynthesis, and the heavy leaves of the victims fall off. During the prevention and treatment period, when there are 3 larvae on the leaves, the larvae are controlled until the second instar of the larvae, and when the dew is dry at 8 to 11 hours, the larvae start to move to the foliage or the old mature larvae start to spray 25% spot when drilling out of the worm. Net emulsion of 1500 times liquid, or 5% Sodium Chloride 2000 times, or 36% of cicada oil 1000 to 1500 times, or 5% stuck gem EC 2000 times. In addition, biological control methods can also be used. The parasitoids such as E. japonicus were parasitized on L. sativae with a high control rate.

The 5XZ-L laboratory Gravity Separator is used for separating seeds by specific gravity difference. It effectively separates granule with heavy specific gravity ( as gravel, soil particles), and granule with light specific gravity (as mildewed seeds, seeds damaged by worms).

 

Working principle:

 

The lab gravity separator sieve bed is triangular shape. On the sieve bed, there are more aluminum punching holes under the hopper area. This design will help raw material stratification.

By the effect of the sieve bed vibration and air blowing from bottom, the raw material is well separated to different ranks. The material discharge outlets are at one side. Outlets are for light impurity, mixing material, good seeds. There are flexible plates on outlets end. These plates can be adjusted to divide area then getting desired sorting effect.

 

Feature:

 

Laboratory Gravity Separator's sorting base on grain density difference. The gravity separator table is triangular structure. The gravity separator table vertical angle, horizontal angle, vibration frequency, bottom air blower volume are all adjustable. This can meet different dimension /density  seed sorting requirements. By using the gravity separator, you will seeds density distribution of this batch of seeds. It is an important seeds studying equipment.

 

Laboratory gravity separator construction:

1.    Feeding hopper 2.    Electromagnetism vibration feeder 3.    Gravity separator table 4.    Driving rotation system 5.    Control cabinet 6.    Bottom fan 7.    Machine frame

Name	Laboratory seed gravity separator
Model	5XZ-L
Capacity	50 kg/h
Air blower power	0.37 kw
Vibrating power	0.13 kw
Vibration frequency	0-600 times/min
Table board inclination	0-3°
Dimension	1000×700×1440 mm

Lab Gravity Separator

Lab Gravity Separator,Laboratory Wheat Mini Destoner,Small Capacity Destoner Machine,Laboratory Gravity Separator

SHIJIAZHUANG SYNMEC INTERNATIONAL TRADING LIMITED , https://www.seedgraincleaner.com