The development and application of the vehicle-mounted spore trapper facilitates the collection of spores of wheat powdery mildew. The instrument removes the aspirator and uses the motor vehicle to advance the aerator power. Tests on the vehicle-mounted spore trap in trains and cars show that when the air moves relative to the trap at a speed of 12 m/s, it can be captured normally. Motor vehicles in this speed range can be installed.
1. The vehicle-mounted spore trapping device is used well after the general incidence in the field, and the installation height should not be too high from the ground or the wheat canopy layer, because it is reported that the density of powdery mildew in the air is farther from the wheat canopy. If used in a disease pandemic year or region, the effect is more pronounced.
2, should choose the wind 3-5 level of the day to be caught in the car driving against the wind (white powder, rust, etc., the need for a certain wind speed to get rid of the stalk). However, if the wind is too strong, the cage is evacuated too quickly and the amount of capture is also reduced.
3. If the trap is hanging outside the train window, it should be hung on the wind side. For example, when going to Fuyang, the trap is hung on the wind side of the train. From the Xiangyang back to the Hefei, the trap is hung on the leeward side. The wind is similar (about 2-3 levels) but the previous capture is much larger than the last time ( Take the leaf rust pile pile growing on the blade).
4. It is better to use the initial unfolded leaves (leaf age <5 days) to support the leaves of the stalks, which can increase the infection of the stalks and improve the collection efficiency. Because the resistance of the leaves will increase with the increase of leaf age, it is not suitable for the infection of the stalks, but only when the piles are grown, it is an effective collection.
5, the captured viability of the scorpion is not affected, and falls directly on the leaves of the susceptible varieties, so it is especially suitable for collecting powdery mildew stalks that will affect the viability of water.
Since the vehicle-mounted spore trapping device is installed in a motor vehicle, it is possible to collect the powdery fungus and the three kinds of rust fungus in a large area in a short time, and carry out the toxicity and frequency analysis of the pathogen group. . The population of bubbles collected by this method not only can well represent the structure of the pathogen population in large areas, but also provide useful information for predicting the trend of various varieties. Representative strain standards can also be collected for physiological race studies.
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