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CN-122008640-A - Composite pine wood nematode epidemic wood treatment bag and pine wood nematode epidemic wood on-site pest removal treatment method

CN122008640ACN 122008640 ACN122008640 ACN 122008640ACN-122008640-A

Abstract

The invention relates to a composite pine wood nematode disease wood treatment bag and a pine wood nematode disease wood on-site pest removal treatment method, wherein the film body of the composite pine wood nematode disease wood treatment bag is of a 5-layer composite structure, an aluminum film layer, a first PE film layer, a polypropylene woven cloth film layer, a second PE film layer and a third PE film layer are sequentially arranged from outside to inside, the thickness of the aluminum film layer is 0.02mm, the thickness of the polypropylene woven cloth film layer is 0.05mm, the warp and weft density is 120 x 120 pieces/inch, each warp and weft is rectangular flat wire, the thickness of each of the first PE film layer, the second PE film layer and the third PE film layer is 0.02mm, the surface tension of the first PE film layer is more than or equal to 38mN/m through corona treatment, and the third PE film layer is a sealing contact layer.

Inventors

  • CAI SHOUPING
  • TANG CHENSHENG
  • DING BI
  • ZENG LIQIONG
  • ZHAN FANGFANG
  • LIN HAOYU

Assignees

  • 福建省林业科学研究院

Dates

Publication Date
20260512
Application Date
20260318

Claims (6)

  1. 1. A composite pine wood nematode disease wood treatment bag is characterized in that a film body of the treatment bag is of a 5-layer composite structure, an aluminum film layer, a first PE film layer, a polypropylene woven cloth film layer, a second PE film layer and a third PE film layer are sequentially arranged from outside to inside, the thickness of the aluminum film layer is 0.02mm, the material is aluminum foil, the thickness of the polypropylene woven cloth film layer is 0.05mm, the warp and weft density is 120 x 120 pieces/inch, each warp and weft is rectangular flat yarn, the thickness of each of the first PE film layer, the second PE film layer and the third PE film layer is 0.02mm, the material is low-density polyethylene, the surface of the first PE film layer is subjected to corona treatment, the surface tension is more than or equal to 38mN/m, the bonding fastness with the polypropylene woven cloth film layer is enhanced, the third PE film layer is a sealing contact layer, the surface is smooth, the hot melting performance is excellent, and the hot-press sealing technology is adapted.
  2. 2. The composite pine wood nematode disease wood treatment bag according to claim 1, wherein the overall thickness of the film body is 0.13mm, the interlayer composite fastness is more than or equal to 3N/15mm, the tensile strength is more than or equal to 58.05N/mm < 2 >, and the penetration resistance is more than or equal to 17.7N.
  3. 3. The composite pine wood nematode disease wood treatment bag according to claim 1 is characterized in that the treatment bag is of a rectangular semi-open structure, the length of the treatment bag is 1.8m, the width of the treatment bag is 1.5m, the effective volume of the treatment bag is 0.3-0.4 cubic meter, the treatment bag body is made of two identical rectangular composite films, three sides of the two identical rectangular composite films are hot-pressed, the hot-pressed width of the three sides is 2cm, and a 'breaking adhesive layer' is pre-adhered to the inner side of a bag opening, so that basic viscosity is provided for subsequent sealing, and mountain operation difficulty is reduced.
  4. 4. The composite pine wood nematode disease wood treatment bag according to claim 1, wherein the treatment bag is of a combined sealing structure, the bottom and two sides of the bag body are sealed by hot pressing at 140 ℃ under 0.5MPa for 8s, the sealing width is 2cm, the sealing strength is more than or equal to 50N/15mm, and the bagging opening is of a final sealing structure formed by breaking the primary adhesive layer and doubling and attaching a transparent adhesive tape with the width of 5-6 cm.
  5. 5. An in-situ pest control treatment method for pine wood nematode disease wood, characterized in that the composite pine wood nematode disease wood treatment bag of any one of claims 1-4 is adopted, comprising the following steps: (1) Cutting epidemic wood into segments with the length of 1.2m on an epidemic wood distribution site; (2) Filling 10-15 sections of epidemic wood into the treatment bag, and simultaneously adding aluminum phosphide fumigant; (3) Preliminary bonding and fixing are carried out by utilizing a broken adhesive layer at the inner side of the bagging opening, and then the whole sealing surface is folded and covered by using a transparent adhesive tape for final sealing; (4) Stacking the sealed treatment bags on site, and standing for 15-20 days to complete pest control treatment of the epidemic wood.
  6. 6. The method for on-site pest control treatment of pine wood nematode disease wood according to claim 5, wherein the treatment method is applicable to mountain forest areas with a gradient less than or equal to 35 ℃ and a temperature range of-10 ℃ to 40 ℃, and no transport of the pine wood is required and no fire operation is required.

Description

Composite pine wood nematode epidemic wood treatment bag and pine wood nematode epidemic wood on-site pest removal treatment method Technical Field The invention relates to an on-site pest-removing treatment method for epidemic wood, in particular to a composite type pine wood nematode epidemic wood treatment bag and an on-site pest-removing treatment method for pine wood nematode epidemic wood. Background Pine wood nematode disease is a first quarantine disease of forestry in China, the transmission medium is Monochamus alternatus, timely and thorough pest removal of epidemic wood is a key link for blocking spread and spread of epidemic situation, however, the existing epidemic wood treatment technology has a plurality of difficult-to-overcome industry pain points, and severely restricts prevention and control effects: 1. the problem of epidemic wood transportation is prominent, namely, most of epidemic wood is distributed in a steep forest area of a mountain high road, the terrain is rugged, the traffic is inconvenient, a great amount of manpower and material resources are required to be input for the transportation of the epidemic wood to the mountain, the transportation efficiency is extremely low, and the cost of the epidemic wood to the mountain is extremely high; 2. The traditional incineration treatment has strong limitation that the centralized incineration of epidemic woods needs to fulfill strict fire judge batches of processes (complicated processes and long periods) and is strictly limited by seasons (such as the comprehensive prohibition of fire use in forest fire prevention period), and meanwhile, the incineration process has great safety risk of 'running fire' to cause forest fire; 3. The conventional fumigation bag has obvious performance defects that a common plastic fumigation bag with the thickness of 0.08mm is poor in puncture resistance and low in tensile strength, is easy to scratch and break by branches and stones in mountain operation, has a simple sealing structure and unreliable sealing property, cannot kill the propagation medium Monochamus alternatus in epidemic wood after the bag is broken, causes unstable pest removal effect, and cannot meet the core requirements of on-site pest removal. Disclosure of Invention Aiming at the defects of the prior art, the invention provides the compound epidemic wood processing bag and the matched processing method which have excellent puncture resistance, reliable sealing, convenient operation and no limitation of places and seasons, and can solve the problems that the epidemic wood in mountain highways and steep areas cannot go down the mountain, the traditional incineration is approved and limited by seasons, and the existing fumigation bag is easy to break and leak, so that the full scene of the pine wood nematode epidemic wood is effectively and effectively removed, the prevention and control cost is reduced, and the prevention and control effect is improved. The technical scheme of the invention is as follows: a composite pine wood nematode disease wood treatment bag is characterized in that a film body of the treatment bag is of a 5-layer composite structure, an aluminum film layer, a first PE film layer, a polypropylene woven cloth film layer, a second PE film layer and a third PE film layer are sequentially arranged from outside to inside, the thickness of the aluminum film layer is 0.02mm, the material is aluminum foil, the thickness of the polypropylene woven cloth film layer is 0.05mm, the warp and weft density is 120 x 120 pieces/inch, each warp and weft is rectangular flat yarn, the thickness of each of the first PE film layer, the second PE film layer and the third PE film layer is 0.02mm, the material is low-density polyethylene, the surface of the first PE film layer is subjected to corona treatment, the surface tension is more than or equal to 38mN/m, the bonding fastness with the polypropylene woven cloth film layer is enhanced, the third PE film layer is a sealing contact layer, the surface is smooth, the hot melting performance is excellent, and the hot-press sealing technology is adapted. 2. The composite pine wood nematode disease wood treatment bag according to claim 1, wherein the overall thickness of the film body is 0.13mm, the interlayer composite fastness is more than or equal to 3N/15mm, the tensile strength is more than or equal to 58.05N/mm < 2 >, and the penetration resistance is more than or equal to 17.7N. Preferably, the treatment bag is of a rectangular semi-open structure, the length of the treatment bag is 1.8m, the width of the treatment bag is 1.5m, the effective volume of the treatment bag is 0.3-0.4 cubic meter, the treatment bag body is made of two identical rectangular composite films, three sides of the two identical rectangular composite films are hot-pressed, the hot-pressed width of the three sides is 2cm, and a 'breaking adhesive layer' is pre-adhered to the inner side of a bag opening, so that