Treatment device of pine material nematode infected wood and its treatment method

Abstract

An apparatus for treating the log suffered from pine nematode is composed of a sucking drum with one closed end and two fine tubes having valve, a vacuumizing pump connected to one fine tube close to the closed end, and a container of sterilizing liquid. Its treating method includes vertically putting said log's one end in said sterilizing liquid, embedding the open end of said sucking drun in its anothe end, turning on said vacuumizing pump to generate negative pressure in said drum, and sucking the sterilizing liquid through all channels in the leg to kill pine nematodes.

Description

technical field [0001] The invention relates to a pine xylophilus, in particular to a device and method for killing the pine xylophilus on infected wood. Background technique [0002] The pine wood nematode (Bursaphelenchus xylophilus) causes pine wilt disease, known as "smokeless forest fires" or "pine cancer". Because pine xylophilus reproduces fast and spreads through vector insects such as longhorns, it quickly spreads and becomes a disaster, causing large areas of pine trees to die quickly. Prohibiting the movement of wood in the ward is one of the main measures to prevent the spread of the disease. At present, pine wood nematode diseased wood is mainly treated by two methods: drug pest control and board processing. The former is fumigated with methyl bromide or sulfuryl fluoride or aluminum phosphide to treat the infected wood; the latter requires that the thickness of the board should not exceed 2.5 cm, and it must be baked at 80-90 °C for more than 4 hours, or the ...

AI Technical Summary

Problems solved by technology

However, drug fumigation is toxic, especially aluminum phosphide is highly toxic; and thermal drying treatment requires the construction of a drying room, and the round logs cannot be used, which greatly reduces the economic value of the diseased wood

More importantly, the processing cost of both is relatively high, and the processing time is relatively long, which will also cause some environmental problems.

In addition, in some places, the method of cutting the infected wood into thin slices and transporting it to papermaking can only kill the adults and larvae of the longhorn beetle, but not the eggs and pine wood nematodes of the longhorn beetle, so the hidden danger cannot be completely eliminated

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