JP2022153558A - Fruit bag and method for placing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fruit bag which has sealability and strength to keep out pest insects while holding sufficient light transparency.

SOLUTION: A fruit bag is configured in the following manner: a predetermined width in an upper side width direction of a square shape with two front/rear sides is a width opened for a young fruit to be placed in, and a bottom area, side areas and an upper side area except an opening 13 are welded or folded inward such that the front and rear sides are continued to form a trunk 11, the capacity of the trunk 11 is larger than a grown-up fruit, and notches 14, or slits at least one of which has no width gap, are disposed around the trunk 11. With the fruit bag 10, the young fruit is inserted from the opening 13 of the upper side of the fruit bag 10, and the opening is closed and the trunk 11 is sealed at a stem part. Thereby, insects such as flies and thrips are hard to enter the fruit bag, and there is no decay caused by pathogenic bacteria carried by such insects. Since the fruit bag made of a resin sheet is strong, it can resist wind and rain, and also it has excellent light transparency because it is transparent. The grown-up fruit after raised has good appearance with the effect of a fraction defective of almost 0% or closer.

SELECTED DRAWING: Figure 3

COPYRIGHT: (C)2023,JPO&INPIT

Description

The present invention relates to a fruit bag used for so-called bagging.

In fruit tree cultivation, if the fruit is left as it is after bearing fruit, it often rots due to various causes. In particular, such a phenomenon is conspicuously observed in figs and the like, which have soft fruits (see Non-Patent Document 1). In most cases, it is caused by fungi carried by bugs and insects, fungi in the ground that splash up in the rain and adhere to leaves, and the like. In order to avoid such a phenomenon, disinfection work and bagging work are performed.

Pictorial book of fig diseases (June 2006: Aichi Prefectural Agricultural Experiment Station)

Although it is common practice to use pesticides to kill pathogens during the fruit development process or at selected times prior to harvest, consumer fears about pesticides cannot be eliminated, resulting in poor product appearance. Even if the value rises, the psychological anxiety cannot be eliminated.

Bagging reduces the amount of insects and insects that donate the fruit, and reduces the attachment of the above-mentioned fungi to the fruit.

One of the reasons why the bagging is not perfect is that the attachment work is troublesome, and the attachment part of the fruit peduncle does not reach a completely sealed state, leaving a gap. Pests often enter through the gaps and carry bacteria. Paper that gets wet with rain tears easily. For example, if the wind blows while the paper is in contact with a branch, it will soon be destroyed. .

We use paper bags because of their high breathability, but paper has poor translucency. will be removed. This work is time consuming and exposes you to pathogens and pests while you are away. In addition, the fruits are often damaged and torn by birds and beetles. In particular, pests such as thrips slip through even a gap of 2 to 3 mm, enter the bag, and gnaw the fruit.

In addition, the deterioration of the strength of the paper bag progresses rapidly, and the strength is insufficient. Therefore, even if the fruit is tied to a branch, it is inevitable that the fruit will drop in the strong winds of a typhoon. In addition, since it is opaque, it is difficult to visually observe the state of the fruit, and when the pesticide is sprayed, there is a risk that the pesticide will be adsorbed to the paper, come into contact with the fruit, and be absorbed.

Instead of paper, it has been proposed to process commercially available nylon/polyurethane stockings into a bag and cover the fruits. This method is of limited effectiveness because the stocking itself is a mesh that allows very small insects such as thrips to slip through.

It is actually practiced to put a simple rectangular synthetic resin sheet on the fruit and tie it to the branch, but the effect is limited because the bag of this shape creates gaps for flies, bees, and thrips to enter. target. In particular, if a thin material (0.2 mm or less) is used, even if it is a synthetic resin, it will break if bitten by a beetle, so the effect is further limited.

SUMMARY OF THE INVENTION It is an object of the present invention, which has been proposed in view of the above-mentioned conventional circumstances, to provide a fruit bag having sufficient sealing performance and strength to keep pests away and sufficient translucency.

In the fruit bag of the present invention, a predetermined width in the width direction of the upper side of the rectangular shape of the two front and back sides is opened to accommodate the young fruit, and the areas of the bottom, side and upper sides excluding the opening are welded or folded into the front and back. is a continuous trunk portion, the volume of the trunk portion is larger than the result, and at least one notch, which is a slit with no gap width, is made around the copper portion.

In addition, the method of attaching the fruit bag of the present invention includes inserting the young fruit from the opening on the upper side of the fruit bag using the fruit bag, closing the opening with the peduncle, and pulling the trunk. It is designed to be sealed.

When the bag for fruit is bagged by the above method, the opening is completely sealed, so insects such as flies and thrips are less likely to enter, and the resin sheet is free from spoilage due to pathogens carried by insects. As a result, it is strong, withstands wind and rain, and is transparent, so it has excellent translucency.

1 is a plan view of a bag of the present invention; FIG. FIG. 3 is a flow diagram showing the procedure for using the bag of the present invention; FIG. 10 is another flow diagram showing the procedure for using the bag of the present invention;

FIG. 1 shows a bag of the invention.

It has a shape in which a strap 12 having a predetermined width is raised from the center of the upper side width direction of a rectangular body part 11 made of vinyl, nylon or the like having two transparent or translucent front and back sides. The bottom edge 11a and the side edge 11b are welded (thick line) or folded (thin line) so that the front and back sides are continuous, and the top edge 11c is also welded and sealed except for the raised portion of the strap 12. As shown in FIG. The volume of the trunk 11 formed by the welded portions of the bottom 11a, the side 11b, and the top 11c is larger than the result, and the diameter of the opening 13 formed inside the upper belt 12 is large enough for young fruits to enter. size.

Since the size of the body part 11 is "larger than the result", it will differ depending on the type of fruit, but in reality, about three sizes of large, medium and small are prepared. The diameter of the opening 13 on the inner side of the belt 12 on the front and back sides is "a size to accommodate the young fruit", and this size also depends on the type of fruit, but is 30 mm or less. Also in this case, it is preferable to prepare, for example, 30 mm, 20 mm, and 10 mm corresponding to the large, medium, and small sizes of the body portion 11 .

In order to ensure air permeability and drainage, at least one portion of the body portion 11 is formed with a small hole or a slit 13 having no gap width.

A method for using the fruit tree bag having the above configuration will be described below.

As shown in FIG. 2( a ), first, when a flower is pollinated and a young fruit A is formed, the young fruit A is put into the fruit tree bag 10 so as to wrap the young fruit A through the opening 13 . In this state, as shown in FIG. is sealed. Next, as shown in FIG. 2(c), the ends of the knots of the front and back straps 12 are turned upward so as to sandwich the branch C, and are tied again on the branch C to form a knot Y. .

The upper end of the trunk portion 11 is sealed by the knot X (connection), and insects such as thrips, flies, and bees do not enter the trunk portion 11 at all. does not occur. In addition, since a sheet made of high-strength material such as nylon is used, it will not break even if it is bitten by a beetle or the like. Even if the weight of the fruit that has grown into the fruit has increased, the probability that the fruit will fall is extremely small even if it encounters heavy rain or a strong wind blows.

It should be noted that when the ventilation and drainage hole (the slit 13 with no gap width) is not provided, water may accumulate inside, but it was also confirmed that this accumulated water does not affect the quality of the fruit. However, in this case, the weight of the stagnant water is applied to the branches, increasing the load on the branches.

In FIG. 3(b), instead of the knot X at the peduncle B portion, the peduncle B portion is left to form a welded portion 15 (connection). The welded portion 15 is provided so as to narrow the opening 13 of the straps 12 on the front and back sides corresponding to the upper side 11c of the body portion 11, so that the harmful insects, bacteria, etc. intrusion can be prevented. Furthermore, FIG. 3(c) shows a structure in which a welded portion 16 (connection) is formed on the branch C of FIG.

As described above, knotting or welding is used as a method of connecting the opening 13 between the belts 12 on the front and back sides, but other means such as a stapler for office use may be used. Also, the method of connecting the strap 12 on the branch A may be replaced by knotting or welding, and other methods may be used.

Table 1 shows the degree of thrips damage, actual weight, coloring ratio, and sugar content of figs "Masui Dauphine" bagged with the fruit bag of the present invention. On June 23, 2004, fruits with a head diameter of 10 to 30 mm were bagged according to the present invention, and the fruits maintained as they were until harvesting were compared for the occurrence of thrips between the case where the bag was not covered and the case where the bag was not covered. It is what I did.

When the fruit tree bag according to the present invention was hung, no thrips damage occurred in all 25 samples. On the other hand, only 7 out of the 22 samples without bagging had no damage, and the others had some kind of thrips damage, though the degree was different.

The degree of thrips damage is determined by dividing the fruit after harvesting and judging the degree of browning inside (degree of damage 0: no, 1: slight browning, 2: browning less than 1/2, 3: browning more than 1/2 , 4: blackening).

Table 2 shows the number of rotten fruit caused by the influence of Drosophila during the growth process of Horai persimmon, which was bagged in the fruit tree bag of the present invention in late July 2004 and harvested on September 4. This is the result of The probability of spoilage was zero with bagging according to the invention, whereas spoilage was as high as 14% without bagging.

After storing the persimmons harvested in Example 2 at 5°C for 6 days, the persimmons with fungal growth on the apex or water-soaked persimmons were regarded as rotten fruits, and the percentage of persimmons was observed. Marsupials had no rotten fruit, probably because fungi were not left open until the time of harvest.

As explained above, the present invention can almost completely prevent the intrusion of pests and fungi, so that the fruit does not rot until shipping, so it can be used in fruit farms and home gardens as well. .

DESCRIPTION OF SYMBOLS 10... Fruit tree bag 11. Body part 11a.. Bottom side, 11b.. Side side, 11c.. Top side 12. Strap 13. Opening 14. Welded part A: fruit, B: stem, C: branch, X, Y: knot

Claims (2)

A predetermined width in the direction of the width of the upper side of a square with two front and back sides is formed into a body part in which the front and back are continuous by welding or folding in the areas excluding the openings of the bottom, side and upper sides, with an opening that is the width of the young fruit. , a fruit bag characterized by the fact that the volume of said body is larger than the result, and at least one incision is made in said copper portion as a slit with no gap width. Using the fruit bag according to claim 1, a young fruit is inserted through an opening on the upper side of the fruit bag, and the opening is closed with a fruit peduncle to seal the body. How to attach the bag.

Images