JP4183723B2 - Fruit bag - Google Patents

Description

  The present invention relates to a fruit bag, and more particularly to a fruit bag having a high insect-control effect.

  Traditionally, when producing fruits such as 20th century pears and other pears, pesticides with a pest control effect have been applied to protect the fruits from pests such as cornworm (Peach moth, pear moth, etc.) and scale insects. It was. In particular, organophosphorus drugs have been used as drugs that are effective against insect pests such as the worms (for example, Patent Document 1).

  By the way, it is difficult to predict the occurrence time and number of occurrences of the beetle because it varies depending on weather conditions and cultivation place. Therefore, pesticide spraying cannot be processed at an appropriate time, and crops are often severely damaged.

  In addition, the pesticide used in this way must have a residual value below the pesticide residue standard stipulated by the Food Sanitation Law, and since this pesticide standard has become a so-called positive list system, pesticides do not scatter to other crops. There is a growing need to do so.

  From such a thing, the method of apply | coating the pesticide with a pest control effect to a fruit bag is mentioned as a method which can control a pest regardless of the generation | occurrence | production time, and a scattering of a pesticide does not occur (for example, patent document 2). Specifically, a fruit bag coated with spruce (methidathion), which is an organophosphorus drug, has been used.

  In recent years, the operation of fruit bags to which spruceside has been applied has changed and it has been treated as a deleterious substance, and the management stipulated in the Poisonous and Deleterious Substances Control Law has become necessary. Fruit bags coated with (Prothiophos) have come to be used.

Japanese Patent Laid-Open No. 5-221816 JP 2006-67846 A

  However, fruit bags coated with tocthione (prothiophos) cannot achieve a sufficient effect on the control of beetles, and in order to effectively control scale insects, an amount of chemical exceeding the pesticide residue standard value must be applied. Necessary.

  Therefore, the present invention has an object to provide a fruit bag having a higher insect-controlling effect than the conventional insect against insects and scale insects, having no phytotoxicity on the fruit, and having a residual agricultural chemical in the fruit below the residual agricultural chemical reference value. To do.

The fruit bag of the invention of claim 1 for achieving the above object is characterized in that a base paper coated with or immersed in permethrin and diazinon is produced.

A fruit bag according to a second aspect of the present invention is the fruit bag according to the first aspect, wherein the permethrin is applied or immersed in a range of 1.72 mg to 172.41 mg per square meter of the base paper.

The fruit bag of the invention of claim 3 is the fruit bag of claim 1 or 2, characterized in that the diazinon is applied or dipped in an amount of 51.72 mg to 206.90 mg per square meter of the base paper. .

According to the fruit bag according to claim 1, since the base paper coated with or immersed in permethrin and diazinon is made into a fruit bag, the drug is scattered to other crops and farm workers as in the case of spraying the drug. Damage can be prevented.

In addition, by combining permethrin, which is highly effective for controlling worms, and diazinon , which is highly effective for controlling scale insects, the effect can be exerted on both worms and scale insects. Furthermore, it is known that by combining permethrin and diazinon , a higher insecticidal effect, that is, a synergistic effect than when each of them is used alone, it is known that the fruit bag of the present invention has a smaller amount of medicine than before. Can exhibit a relatively high insect repellent effect.

  In addition, the damage of the common beetle such as peach moth, pear moth moth, and scale insect is a damage often seen in the cultivation of pears such as pears and apples, so by using the fruit bag of the present invention, pears and apples can be made safer and It can be cultivated efficiently.

According to the fruit bag according to claim 2 , since permethrin is applied or dipped in a range of 1.72 mg to 172.41 mg per square meter of the base paper, the amount of permethrin remaining in the fruit covered with the fruit bag is 0.00. It becomes an extremely low value of 06 ppm or less, and can provide a safer fruit. Further, by applying or dipping permethrin in an amount of 1.72 mg or more per square meter of the base paper, it is possible to control syncytium more suitably.

According to the fruit bag of claim 3, since diazinon is applied or dipped in an amount of 51.72 mg to 206.90 mg per square meter of the base paper, the amount of diazinon remaining in the fruit covered with the fruit bag is 0.00 . 10 ppm or less. For example, the pesticide residue standard value based on the food hygiene law for diazinon, which is a typical organophosphorus compound, is 0.1 ppm for Japanese pear, and other fruits are also in the range of 0.1 ppm to 1 ppm. The pesticide residue value of the fruit covered with the bag can be set to a value equal to or less than the pesticide residue reference value. Further, by applying or dipping 51.72 milligrams or more of diazinon per square meter of the base paper, it is possible to more suitably control scale insects.

  The fruit bag 1 of the present invention is obtained by applying or dipping a pyrethroid compound and an organic phosphorus compound. The pyrethroid compounds of the present invention mainly include pyrethrin I, pyrethrin II, cinerine I, cinerine II, jasmolin I, jasmolin II, allethrin I, allethrin II, D-tetramethrin, resmethrin, framethrin, phenothrin (smithlin), Examples include permethrin, ciphenothrin, brathrin, etofenprox (Vectron), cyfluthrin, teflutrin, bifenthrin, resmethrin, cypermethrin, fulvalinate, and the like.

  The organic phosphorus compounds of the present invention mainly include diazinon, prothiophos (tocthione), dichlorvos (DDVP), temefos (avait), pyridafenthion (offnack), trichlorfone (dipterex), fenitrothion (sumithion), fenthion (vitex) ), Propentaphos (saflotin), chloropyrifosmethyl (Satel), marathon, splatside, ortholan, calfos and the like.

  In addition, the permethrin which concerns on this invention contains each isomer, and the quantity of permethrin is the sum of each isomer.

  The fruit bag 1 of the present invention can be manufactured using fruit bag base paper of a kind such as white imitation paper, brown imitation paper, red imitation paper, streaked kraft paper, streaked kraft paper, and newspaper base paper. In addition, when water-repellent processing is performed using paraffin wax or emulsion wax, a pyrethroid compound and an organophosphorus compound are applied or immersed in the base paper before water-repellent processing, and then paraffin processing or emulsion processing is performed, or Adhesion or impregnation of pyrethroid compound and organophosphorus compound to the fruit bag base paper by paraffin processing and emulsion processing using a mixed solution of pyrethroid compound and organophosphorus compound dissolved in liquid paraffin wax or emulsion wax be able to.

  In addition, the fruit bag 1 of the present invention dissolves the coating device and the pyrethroid compound and the organophosphorus compound that are applied by bringing the roller to which the aqueous solution in which the pyrethroid compound and the organophosphorus compound are dissolved is adhered to the base paper of the fruit bag. It can be manufactured using a known coating device such as a coating device that sprays an aqueous solution onto a base paper by spraying.

  Alternatively, an aqueous solution of a pyrethroid compound may be applied to the fruit bag base paper by a coating device, and then an aqueous solution of an organophosphorus compound may be applied. After an aqueous solution of an organic phosphorus compound is applied, an aqueous solution of a pyrethroid compound is applied. May be.

  Alternatively, it may be produced by immersing the fruit bag base paper in a mixed solution of an aqueous solution of a pyrethroid compound and an aqueous solution of an organophosphorus compound. After immersing in an aqueous solution of a pyrethroid compound, it is immersed in an aqueous solution of an organophosphorus compound. It may be manufactured. Moreover, after immersing in the aqueous solution of an organophosphorus compound, you may immerse in the aqueous solution of a pyrethroid compound.

  For example, when 0.431 grams of a 20 percent aqueous solution of a pyrethroid compound and 4.31 grams of a 20 percent aqueous solution of an organophosphorus compound are mixed in 1 kilogram of paraffin wax and the fruit bag base paper is immersed in the mixed solution, 10 grams of the mixture is impregnated. Thus, when produced in this way, it contains 8.62 milligrams of pyrethroid compound and 86.21 milligrams of organophosphorus compound per square meter of fruit bag base paper, and a standard pear fruit bag size of 580 square centimeters of pyrethroid compound of 0. A fruit bag 1 containing 50 milligrams and 5.00 milligrams of an organophosphorus compound can be produced.

  When cultivating fruits using the fruit bag 1 of the present invention, the sachets that have been subjected to antibacterial treatment are applied to the young fruits around the 20th day after flowering, and the growth has further progressed to the fruits around the 50th day after flowering. The fruit bag 1 of the present invention is covered. In addition, the fruit bag 1 of this invention is applicable also in the cultivation method which bags only a large bag, without performing a small bag hanging with respect to a young fruit in this way.

  The fruit bag of the present invention may be a single fruit bag 1 or a double fruit bag 1 having an inner bag 3 and an outer bag 2. The compound and the organophosphorus compound may be applied or immersed in either the inner bag 3 or the outer bag 2. Moreover, when apply | coating a pyrethroid compound or / and an organophosphorus compound to fruit bag base paper, you may apply | coat to the surface used as the surface of a bag, and may apply | coat it to the surface used as the back surface of a bag. In addition, although the double fruit bag 1 is shown as an example of the fruit bag based on this invention in FIG.1 and FIG.2, a single fruit bag may be sufficient as above-mentioned.

[Investigation of pesticide residue]
Foods in which various pesticides remain in excess of the standards stipulated by the Food Sanitation Law (hereinafter referred to as residual pesticide standard values) cannot be distributed or sold in Japan. Therefore, cultivated by wrapping and cultivating a fruit bag immersed in permethrin, a pyrethroid compound, a fruit bag immersed in prothiophos, an organic phosphorus compound, and a fruit bag immersed in diazinon, an organic phosphorus compound. The pesticide residue value of pear was investigated.

  In addition, as shown in Table 1 below, the reference values for pesticide residues in Japanese pears such as the 20th century pear are 2.0 ppm for permethrin, 0.1 ppm for prothiophos, and 0.1 ppm for diazinon. Therefore, Japanese pears with pesticide residues exceeding this value cannot be distributed and sold.

  Each fruit bag was covered with 200 twentieth century pears extracted at random for each of the categories 1 to 12 shown in Table 1. The covering period was from June 20 to August 25, and on August 25, 80 twentieth century pears of each category were collected and investigated.

  Category 1 fruit bags are neither coated nor immersed in pesticides. In the fruit bag of Category 2, permethrin was immersed in 1.72 mg per square meter of the base paper of the fruit bag. In the fruit bag of Category 3, 8.62 milligrams of permethrin was immersed per square meter of the base paper of the fruit bag. In the fruit bag of Category 4, 25.86 milligrams of permethrin was immersed per square meter of the base paper of the fruit bag. In the fruit bag of Category 5, 51.72 milligrams of permethrin was immersed per square meter of the base paper of the fruit bag. In the fruit bag of Category 6, permethrin was immersed in 172.41 mg per square meter of the base paper of the fruit bag. In category 7 fruit bags, prothiophos was immersed in 8.62 milligrams per square meter of the fruit bag base paper. In the fruit bag of Category 8, 17.24 mg of prothiofos was immersed per square meter of the base paper of the fruit bag. In the fruit bag of Category 9, 51.72 milligrams of diazinon was immersed per square meter of the base paper of the fruit bag. In the category 10 fruit bag, 86.21 milligrams of diazinon was immersed per square meter of the base paper of the fruit bag. In the fruit bag of Category 11, diazinon was immersed in 137.93 milligrams per square meter of the base paper of the fruit bag. In the fruit bag of Category 12, diazinon was immersed in 206.90 milligrams per square meter of the base paper of the fruit bag.

The survey results are shown in Table 1.

  Next, we investigated the damage of sinkworms and scale insects of 20th century pears that were cultivated with the fruit bags of the present invention.

[Example 1]
After putting a small fruit bag with daconil applied as a fungicide on 100 young twentieth century pears extracted at random, a large fruit bag (hereinafter referred to as a large bag) on June 20 Covered. Then, on September 5, 50 twentieth century pears were collected and investigated.

  The large bag 2 used in Example 1 was obtained by immersing the base paper of a fruit bag in a mixed solution in which 17.24 grams of permethrin and 517.24 grams of diazinon were mixed with 100 kilograms of liquid paraffin wax. At this time, 10 grams of the mixed liquid per square meter was immersed in the fruit bag base paper. Thereafter, the fruit bag base paper was dried, cut into pieces every 580 square centimeters, and made into bags.

  The permethrin impregnation amount per large bag used in Example 1 produced as described above was 0.10 milligram, and the impregnation amount of diazinon per large bag was 3.00 milligrams. Moreover, the impregnation amount of permethrin per square meter of the base paper was 1.72 mg, and the impregnation amount of diazinon per square meter of the base paper was 51.72 milligrams.

The survey results are as shown in Table 2 below.
[Example 2]

  In the large bag used in Example 2, the base paper of the fruit bag was immersed in a mixed solution in which 86.2 grams of permethrin and 517.24 grams of diazinon were mixed with 100 kilograms of liquid paraffin wax. At this time, 10 grams of the mixed liquid per square meter was immersed in the fruit bag base paper. Thereafter, the fruit bag base paper was dried, cut into pieces every 580 square centimeters, and made into bags.

  The permethrin impregnation amount per one large bag used in Example 2 produced as described above was 0.50 milligrams, and the impregnation amount of diazinon per large bag was 3.00 milligrams. The amount of permethrin impregnated per square meter of base paper was 8.62 milligrams, and the amount of diazinon impregnated per square meter of base paper was 51.72 milligrams.

The same as Example 1 except for the amount of the drug immersed in the large bag.
The survey results are as shown in Table 2 below.

[Example 3]
In the large bag used in Example 3, the base paper of the fruit bag was immersed in a mixed solution in which 258.6 grams of permethrin and 517.24 grams of diazinon were mixed with 100 kilograms of liquid paraffin wax. At this time, 10 grams of the mixed liquid per square meter was immersed in the fruit bag base paper. Thereafter, the fruit bag base paper was dried, cut into pieces every 580 square centimeters, and made into bags.

  The permethrin impregnation amount per large bag used in Example 3 produced as described above was 1.50 milligrams, and the impregnation amount of diazinon per large bag was 3.00 milligrams. The amount of permethrin impregnated per square meter of base paper was 25.86 milligrams, and the amount of diazinon impregnated per square meter of base paper was 51.72 milligrams.

The same as Example 1 except for the amount of the drug immersed in the large bag.
The survey results are as shown in Table 2 below.

[Example 4]
The large bag used in Example 4 was obtained by immersing the base paper of a fruit bag in a mixed solution in which 517.2 grams of permethrin and 517.2 grams of diazinon were mixed in 100 kilograms of liquid paraffin wax. At this time, 10 grams of the mixed liquid per square meter was immersed in the fruit bag base paper. Thereafter, the fruit bag base paper was dried and cut into pieces every 580 square centimeters.

  The permethrin impregnation amount per large bag used in Example 4 produced as described above was 3.00 milligrams, and the impregnation amount of diazinon per large bag was 3.00 milligrams. Moreover, the impregnation amount of permethrin per square meter of the base paper was 51.72 milligrams, and the impregnation amount of diazinon per square meter of the base paper was 51.72 milligrams.

The same as Example 1 except for the amount of the drug immersed in the large bag.
The survey results are as shown in Table 2 below.
[Example 5]
In the large bag used in Example 5, the base paper of the fruit bag was immersed in a mixed solution in which 1724.1 grams of permethrin and 517.2 grams of diazinon were mixed with 100 kilograms of liquid paraffin wax. At this time, 10 grams of the mixed liquid per square meter was immersed in the fruit bag base paper. Thereafter, the fruit bag base paper was dried and cut into pieces every 580 square centimeters.

  The permethrin impregnation amount per large bag used in Example 4 produced as described above was 10.00 milligrams, and the diazinon impregnation amount per large bag was 3.00 milligrams. Moreover, the impregnation amount of permethrin per square meter of the base paper was 172.41 mg, and the impregnation amount of diazinon per square meter of the base paper was 51.72 milligrams.

The same as Example 1 except for the amount of the drug immersed in the large bag.
The survey results are as shown in Table 2 below.

[Comparative Example 1]
The large bag used in Comparative Example 1 was obtained by immersing fruit bag base paper in liquid paraffin wax. At this time, 10 grams of the mixed liquid per square meter was immersed in the fruit bag base paper. Thereafter, the fruit bag base paper was dried, cut into pieces every 580 square centimeters, and made into bags.

Example 1 is the same as Example 1 except for the type and amount of the drug immersed in the large bag.
The survey results are as shown in Table 3 below.

[Comparative Example 2]
In the large bag used in Comparative Example 2, the base paper of the fruit bag was immersed in a mixed solution in which 8621 grams of diazinon was mixed with 100 kilograms of liquid paraffin wax. At this time, the fruit bag base paper was impregnated with 10 grams of mixed liquid per square meter. Thereafter, the fruit bag base paper was dried, cut into 580 square centimeters, and made into bags.

  The impregnation amount of diazinon per large bag used in Comparative Example 2 produced as described above was 5.00 milligrams. Moreover, the impregnation amount of diazinon per square meter of the base paper was 86.21 milligrams.

Example 1 is the same as Example 1 except for the type and amount of the drug immersed in the large bag.
The survey results are as shown in Table 3 below.

[Comparative Example 3]
In the large bag used in Comparative Example 3, the base paper of the fruit bag was immersed in a mixed solution in which 17241 grams of diazinon was mixed with 100 kilograms of liquid paraffin wax. At this time, the fruit bag base paper was impregnated with 10 grams of mixed liquid per square meter. Thereafter, the fruit bag base paper was dried and cut into pieces every 580 square centimeters.

  The impregnation amount of diazinon per large bag used in Comparative Example 3 produced as described above was 10.00 milligrams. The impregnation amount of diazinon per square meter of the base paper was 172.41 milligrams.

Example 1 is the same as Example 1 except for the type and amount of the drug immersed in the large bag.
The survey results are as shown in Table 3 below.

[Comparative Example 4]
In the large bag used in Comparative Example 4, the base paper of the fruit bag was immersed in a mixed solution in which 862 grams of prothiophos (tocthione) was mixed in 100 kilograms of liquid paraffin wax. At this time, the fruit bag base paper was impregnated with 10 grams of mixed liquid per square meter. Thereafter, the fruit bag base paper was dried and cut into pieces every 580 square centimeters.

  The impregnation amount of prothiophos (tocthione) per large bag used in Comparative Example 4 produced as described above was 0.50 milligrams, and the impregnation amount of prothiophos (tocthione) per square meter of base paper was 8.62 milligrams.

Example 1 is the same as Example 1 except for the type and amount of the drug immersed in the large bag.
The survey results are as shown in Table 3 below.

[Comparative Example 5]
In the large bag used in Comparative Example 5, the base paper of the fruit bag was immersed in a mixed solution in which 1724 grams of prothiophos was mixed in 100 kilograms of liquid paraffin wax. At this time, the fruit bag base paper was impregnated with 10 grams of mixed liquid per square meter. Thereafter, the fruit bag base paper was dried, cut into pieces every 580 square centimeters, and made into bags.

  The impregnation amount of prothiophos (tocthione) per large bag used in Comparative Example 5 produced as described above was 1.00 milligrams, and the impregnation amount of prothiophos (tocthione) per square meter of base paper was 17.24 milligrams.

Example 1 is the same as Example 1 except for the type and amount of the drug immersed in the large bag.
The survey results are as shown in Table 3 below.

  As is apparent from the above examples and comparative examples, the amount of permethrin applied is at least 1.72 mg to 172.41 mg per square meter of the base paper of the fruit bag, and the amount of diazinon applied is at least the base paper 1 of the fruit bag. There is no damage to the hornworm and scale insect at 51.72 milligrams per square meter. Since the insect repellent effect increases as the amount of the drug increases, the amount of permethrin applied is 1.72 milligrams or more per square meter of the base paper of the fruit bag, and the amount of diazinon applied is 51. When it is 72 milligrams or more, no damage is caused by syncytium and scale insects.

  Further, when the applied amount of permethrin is at least 174.41 milligrams per square meter of the base paper of the fruit bag, the residual pesticide amount in the fruit is 0.06 ppm. Therefore, if the applied amount of permethrin is at most 172.41 milligrams per square meter of the base paper of the fruit bag, the permethrin residual pesticide reference value of 2.0 ppm will not be exceeded.

  When the amount of diazinon applied is at least 206.90 milligrams per square meter of the base paper of the fruit bag, the amount of pesticide residue in the fruit is 0.10 ppm. Therefore, at least if the application amount of diazinon is 206.90 milligrams or less per square meter of the base paper of the fruit bag, it will not exceed 0.1 ppm which is the residual agricultural chemical reference value of diazinon.

  Based on the above, the coating amount per square meter of permethrin fruit bag is not less than 1.72 mg and not more than 172.41 mg, and the coating amount per square meter of diazinon fruit bag is not less than 51.72 mg. When the amount is 206.90 milligrams or less, the amount of residual agricultural chemicals below the residual agricultural chemical reference value of the fruit can prevent damage to the beetles and scale insects.

  As mentioned above, the fruit bag which concerns on this invention is applicable to the fruit bag used for cultivation of fruits, such as a 20th century pear, for example.

It is a front view of the fruit bag 1 of this embodiment. It is a use condition explanatory view of fruit bag 1 of this embodiment.

Explanation of symbols

1 fruit bag 2 outer bag 3 inner bag 4 pear

Claims (3)

A fruit bag characterized in that a base paper coated with or immersed in permethrin and diazinon is made into a bag. 2. The fruit bag according to claim 1, wherein the permethrin is applied or dipped in a range of 1.72 mg to 172.41 mg per square meter of base paper. The fruit bag according to claim 1 or 2, wherein the diazinon is applied or dipped in an amount of 51.72 mg to 206.90 mg per square meter of base paper.

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