JPH0665015A - Algae controlling agent - Google Patents
Algae controlling agentInfo
- Publication number
- JPH0665015A JPH0665015A JP22116592A JP22116592A JPH0665015A JP H0665015 A JPH0665015 A JP H0665015A JP 22116592 A JP22116592 A JP 22116592A JP 22116592 A JP22116592 A JP 22116592A JP H0665015 A JPH0665015 A JP H0665015A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- algae
- active ingredient
- essential oil
- controlling agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は精油成分を有効成分とし
て含有する藻類防除剤に関する。更に詳細には、アニス
オイル、ベイオイル、カッシアオイルなどの特定の精油
成分を有効成分として含有する藻類防除剤に関する。TECHNICAL FIELD The present invention relates to an algae control agent containing an essential oil component as an active ingredient. More specifically, it relates to an algae control agent containing a specific essential oil component such as anise oil, bay oil and cassia oil as an active ingredient.
【０００２】[0002]
【従来の技術】ゴルフ場では、通常１日に数回の散水を
行ない、更には液体肥料等を大量に使用するためグリー
ンのみならずフェアウェイに大量の藻類が繁殖し泥沼状
になっている。野菜、果物などを栽培する温室の下部に
おいても水をよく使用するため同様の問題点があり、ま
た温泉場においても同様である。現在、藻類に対する有
効な薬剤が市販されていないため対応策が無く大きな問
題になっている。2. Description of the Related Art In a golf course, water is usually sprayed several times a day, and a large amount of liquid fertilizer is used. Since water is often used even in the lower part of a greenhouse where vegetables and fruits are cultivated, there are similar problems, and also in hot spring resorts. Currently, no effective drug against algae is available on the market, so there is no countermeasure and it is a big problem.
【０００３】[0003]
【発明が解決しようとする課題】現在、有効な薬剤が開
発されていないが、藻類防除に有効であると言われる薬
剤として界面活性剤がある。しかしながら、本発明者ら
が効果の検討を行なったところ界面活性剤は効果の弱い
ものであることが明らかになった。そのため界面活性剤
は実際に十分な薬効が期待できるものではない。また、
この効果の低い界面活性剤を用いて藻類を防除する為に
は、多量散布を行なわなければならずゴルフ場等に隣接
する河川に多大の悪影響を及ぼすことが考えられる。従
って、本発明の目的は、低い施用量で効果があり安全性
の高い藻類防除剤を提供することにある。Although no effective drug has been developed at present, a surfactant is known as a drug which is said to be effective for controlling algae. However, when the present inventors examined the effect, it became clear that the surfactant had a weak effect. Therefore, a surfactant cannot actually be expected to have a sufficient drug effect. Also,
In order to control algae using a surfactant having a low effect, it is necessary to spray a large amount, and it is considered that the river adjacent to the golf course or the like will be greatly adversely affected. Therefore, an object of the present invention is to provide an algae control agent which is effective at a low application rate and is highly safe.
【０００４】[0004]
【課題を解決するための手段】本発明者らは、環境への
悪影響が無く安全性の高い藻類防除剤を得ることを目的
として、植物の抽出成分について検索した結果、アニス
オイル、ベイオイル、カッシアオイルなどの特定の精油
成分が低い施用量で藻類の増殖阻害効果を発揮し、上記
した目的を達成し得ることを見出し本発明を完成させ
た。[Means for Solving the Problems] The inventors of the present invention have conducted a search on plant extract components for the purpose of obtaining a highly safe algae control agent that does not adversely affect the environment. As a result, anise oil, bay oil and cassia are obtained. The present invention has been completed by finding that a specific essential oil component such as oil exerts an algae growth inhibitory effect at a low application rate and can achieve the above-mentioned object.
【０００５】即ち、本発明は、アニスオイル、ベイオイ
ル、カッシアオイル、シソオイルおよびタイムオイルか
らなる群より選ばれた一種または二種以上の精油成分を
有効成分として含有する藻類防除剤である。本発明で有
効成分として用いられる精油成分はいずれも良く知られ
たものであり、アニスオイルはアニス実を水蒸気蒸留し
て得られ、アネトールを主成分として含有している。ベ
イオイルはLaurus nobilisの葉を水蒸気蒸留して得られ
オイゲノールなどを成分として含有するものである。カ
ッシアオイルはCinnamomumcassia（クスノキ科）の葉及
び枝を水蒸気蒸留して得られ、シンナムアルデヒドなど
を主成分として含有している。シソオイルはPerilla fr
utescens（シソ科）の葉を水蒸気蒸留して得られるもの
であり、ペリリルアルデヒドを主成分として含有してい
る。タイムオイルはタチジャコウソウオイルとも呼ば
れ、タチジャコウソ Tdymus vulgaris L.の全草を水蒸
気蒸留して得られ、チモールを主成分とするものであ
る。That is, the present invention is an algae control agent containing as an active ingredient one or more essential oil components selected from the group consisting of anise oil, bay oil, cassia oil, perilla oil and thyme oil. The essential oil component used as an active ingredient in the present invention is well known, and anise oil is obtained by steam distillation of anise fruit and contains anethole as a main component. Bay oil is obtained by steam-distilling Laurus nobilis leaves and contains eugenol as a component. Cassia oil is obtained by steam-distilling leaves and branches of Cinnamomum cassia (Lauraceae), and contains cinnamaldehyde as a main component. Perilla fr is perilla fr
It is obtained by steam distillation of leaves of utescens (Lamiaceae), and contains perillyl aldehyde as a main component. Thyme oil, also known as pearl oyster oil, is obtained by steam-distilling the whole plant of pearl oyster, Tdymus vulgaris L., and has thymol as its main component.
【０００６】これらの精油成分はいずれか一種のみを用
いてもよく、また二種以上の混合物として用いてもよ
い。これらの精油成分は、通常、水及び必要に応じて適
当な有機溶媒を用いて希釈して、水和剤、乳剤、溶液剤
などの形態で用いることができる。また、適当な固体担
体、例えば珪酸、カオリンなどを用いた粉剤などの形態
で用いることもできる。本発明の藻類防除剤には、必要
に応じて、通常用いられる界面活性剤、乳化剤、分散
剤、安定剤、防カビ剤、除草剤などを添加してもよい。
藻類防除剤中の有効成分の含有量は、通常、５〜８０重
量％、好ましくは４０〜５０重量％である。本発明の藻
類防除剤の施用方法としては、通常は藻類上に常法によ
り散布する方法が挙げられる。有効成分の施用量は、施
用方法、有効成分の種類などに応じて変動し得るが、通
常０．１〜５ｇ／ｍ2 、好ましくは０．５〜１ｇ／ｍ2
である。本発明の藻類防除剤が対象とする藻類はいずれ
でもよく、例えば緑薬類、ラン藻類、渦鞭毛藻類、珪藻
類などが挙げられる。Any one of these essential oil components may be used, or a mixture of two or more types may be used. These essential oil components can usually be diluted with water and, if necessary, a suitable organic solvent, and used in the form of wettable powder, emulsion, solution and the like. It can also be used in the form of a powder or the like using a suitable solid carrier such as silicic acid or kaolin. The algae control agent of the present invention may contain, if necessary, commonly used surfactants, emulsifiers, dispersants, stabilizers, fungicides, herbicides and the like.
The content of the active ingredient in the algae control agent is usually 5 to 80% by weight, preferably 40 to 50% by weight. As a method of applying the algae control agent of the present invention, a method of spraying on algae by a conventional method is usually mentioned. The application amount of the active ingredient may vary depending on the application method, the type of the active ingredient, etc., but is usually 0.1 to 5 g / m 2 , preferably 0.5 to 1 g / m 2.
Is. The alga controlling the alga controlling agent of the present invention may be any alga, and examples thereof include green medicines, cyanobacteria, dinoflagellates, diatoms and the like.
【０００７】[0007]
【発明の効果】本発明の藻類防除剤は、アニスオイル、
ベイオイルなどの特定の精油成分を有効成分として含有
するものである。これらの精油成分は低い施用量で各種
の藻類に対して増殖阻害効果を発揮する。他方、これら
の精油成分は食品、香料などに使用されており従って安
全性の高いものである。更には、精油成分は蒸気圧が高
いため土壌に散布しても数日中には気化し、長く残留す
ることがないため、河川等への影響も少ない。The algal control agent of the present invention is anis oil,
It contains a specific essential oil component such as bay oil as an active ingredient. These essential oil components exert a growth inhibitory effect on various algae at low application rates. On the other hand, these essential oil components are used for foods, fragrances, etc., and are therefore highly safe. Furthermore, since the essential oil component has a high vapor pressure, even if it is sprayed on the soil, it vaporizes within a few days and does not remain for a long time, so it has little effect on rivers.
【０００８】[0008]
【実施例】以下、本発明を実験例及び実施例により更に
詳細に説明する。 実験例藻類に対する増殖阻害効果の試験 実験方法 緑藻であるDunaliella eucholra をハイポネックス培地
（ハイポネックスの１０００倍希釈液）を用いて培養す
る。この緑藻が対数増殖期の状態の時、培養液を１０倍
に希釈して直径９cmのシャーレに移植する。この緑藻培
養シャーレに一定濃度に希釈した精油成分を添加する。
添加する精油成分は界面活性剤Tween-20を１０％加え水
溶液に可溶性な状態にしておく。精油成分を添加した緑
藻シャーレは２５℃、１００００lux-24hrの条件下に５
日間培養し、最小阻害濃度（ＭＩＣ）の測定を行なっ
た。ここで述べる最小阻害濃度（ＭＩＣ）とは、藻類の
増殖を完全に抑制する濃度であり、５日間の藻類培養で
培養液が全く緑色化しない濃度のことを言う。実験結果 得られたＭＩＣ測定結果は以下の表に示した通りであ
る。EXAMPLES The present invention will be described in more detail with reference to experimental examples and examples. Experimental Example Test of Growth Inhibitory Effect on Algae Experimental Method The green alga Dunaliella eucholra is cultivated using a Hyponex medium (1000-fold dilution of Hyponex). When the green alga is in the logarithmic growth phase, the culture solution is diluted 10 times and transplanted into a petri dish having a diameter of 9 cm. An essential oil component diluted to a constant concentration is added to this green alga culture dish.
As the essential oil component to be added, 10% of a surfactant Tween-20 is added and kept in a state of being soluble in an aqueous solution. The green algae petri dish added with the essential oil component is 5 ° C under the condition of 25 ° C, 10,000lux-24hr.
After culturing for a day, the minimum inhibitory concentration (MIC) was measured. The minimum inhibitory concentration (MIC) described here is a concentration at which the growth of algae is completely suppressed, and is a concentration at which the culture solution does not turn green at all during 5 days of algae culture. Experimental results The MIC measurement results obtained are as shown in the table below.
【０００９】[0009]
【表１】精油成分 最小阻害濃度（ＭＩＣ） アニスオイル ５０ppm ベイオイル ２５ppm カッシアオイル ５０ppm シソオイル ５０ppm タイムオイル １０ppm 比較サンプルTriton X-100 ２００ppm [Table 1] Minimum inhibitory concentration (MIC) of essential oil component Anise oil 50ppm Bay oil 25ppm Cassia oil 50ppm Perilla oil 50ppm Time oil 10ppm Comparative sample Triton X-100 200ppm
【００１０】また、温室に発生した藻類（ラン藻類，緑
藻類，渦鞭毛藻類，珪藻類の混在）を培養し、上記の実
験方法と同様に最小阻害濃度の測定を行なった。Further, algae (Cyanobacteria, green algae, dinoflagellates, diatoms mixed) generated in the greenhouse were cultured, and the minimum inhibitory concentration was measured in the same manner as in the above experimental method.
【表２】精油成分 最小阻害濃度（ＭＩＣ） アニスオイル ５０ppm ベイオイル ５０ppm カッシアオイル ５０ppm シソオイル ５０ppm タイムオイル ５０ppm 比較サンプルTriton X-100 ２５０ppm [Table 2] Minimum inhibitory concentration (MIC) of essential oil component Anise oil 50ppm Bay oil 50ppm Cassia oil 50ppm Perilla oil 50ppm Time oil 50ppm Comparative sample Triton X-100 250ppm
【００１１】上記の測定結果が示すように、アニスオイ
ル，ベイオイル，カッシアオイル，シソオイル，タイム
オイルは植物から得られる天然精油成分でありながら藻
類一般に５０ppm 以下の低い濃度で増殖阻害効果を発揮
する。As shown by the above measurement results, anise oil, bay oil, cassia oil, perilla oil, and thyme oil are natural essential oil components obtained from plants, but algal plants generally exhibit a growth inhibitory effect at a low concentration of 50 ppm or less.
【００１２】実施例水和剤の製造 以下の成分を通常の方法により混合して水和剤を得た。 アニスオイル ９２重量部 ポリオキシエチレンアルキルアリルエーテル ８重量部 水 １００重量部Example Preparation of wettable powder The following components were mixed by a conventional method to obtain a wettable powder. Anise oil 92 parts by weight Polyoxyethylene alkyl allyl ether 8 parts by weight Water 100 parts by weight
Claims (1)
イル、シソオイルおよびタイムオイルからなる群より選
ばれた一種または二種以上の精油成分を有効成分として
含有する藻類防除剤。1. An algae control agent containing as an active ingredient one or more essential oil components selected from the group consisting of anise oil, bay oil, cassia oil, perilla oil and thyme oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22116592A JPH0665015A (en) | 1992-08-20 | 1992-08-20 | Algae controlling agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22116592A JPH0665015A (en) | 1992-08-20 | 1992-08-20 | Algae controlling agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0665015A true JPH0665015A (en) | 1994-03-08 |
Family
ID=16762492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22116592A Pending JPH0665015A (en) | 1992-08-20 | 1992-08-20 | Algae controlling agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0665015A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2468849A (en) * | 2009-03-23 | 2010-09-29 | Arab Biotechnology Company | Compositions and methods for treating or preventing harmful algal blooms |
| CN108605996A (en) * | 2018-06-07 | 2018-10-02 | 浙江农林大学 | Biological algae removal agent based on cinnamomum camphora and preparation method thereof |
-
1992
- 1992-08-20 JP JP22116592A patent/JPH0665015A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2468849A (en) * | 2009-03-23 | 2010-09-29 | Arab Biotechnology Company | Compositions and methods for treating or preventing harmful algal blooms |
| CN108605996A (en) * | 2018-06-07 | 2018-10-02 | 浙江农林大学 | Biological algae removal agent based on cinnamomum camphora and preparation method thereof |
| CN108605996B (en) * | 2018-06-07 | 2021-04-23 | 浙江农林大学 | Cinnamomum camphora-based biological algicide and preparation method thereof |
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