DE465531C - Preparations for killing insects - Google Patents

Preparations for killing insects

Info

Publication number
DE465531C
DE465531C DEV19401D DEV0019401D DE465531C DE 465531 C DE465531 C DE 465531C DE V19401 D DEV19401 D DE V19401D DE V0019401 D DEV0019401 D DE V0019401D DE 465531 C DE465531 C DE 465531C
Authority
DE
Germany
Prior art keywords
preparations
killing insects
pyrethrum
soap
powder
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.)
Expired
Application number
DEV19401D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ver Chemische & Metallurgische
Original Assignee
Ver Chemische & Metallurgische
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ver Chemische & Metallurgische filed Critical Ver Chemische & Metallurgische
Priority to DEV19401D priority Critical patent/DE465531C/en
Application granted granted Critical
Publication of DE465531C publication Critical patent/DE465531C/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

Mittel zur Insektenvertilgung Es ist bereits vorgeschlagen worden, Pyrethrumpulver oder Alkaloidauszüge des Pyrethrumpulvers im Gemisch mit Schmierseife oder suspendiert in Seifenlösungen zur Anwendung zu bringen, um das Insektenpulver oder sein wirksames Prinzip in spritzfähige Form zu bringen. Auch wurde zur Vermeidung von Pflanzenbeschädigungen vorgeschlagen, das Insektenpulver in wasseriger Lösung mit neutralen Seifen zu verwenden. Indessen ist es noch nicht gelungen, lagerbeständige, versandfäl)ige, für den Handel brauchbare Präparate zu erzeugen, da die bisherigen Produkte schon nach kurzer Zeit an Wirksamkeit verlieren und schließlich gänzlich unwirksam werden. Diese Erscheinung beruht darauf, daß das Pyrethrumalkaloid äußerst empfindlich gegen geringe Mengen freien Alkalis ist und in Berührung mit diesem durch Verseifung in völlig unwirksame Bestandteile zerlegt wird.Means for killing insects It has already been suggested Pyrethrum powder or alkaloid extracts of pyrethrum powder mixed with soft soap or suspended in soapy solutions to apply to the insect powder or to bring its effective principle into an injectable form. It was also used to avoid it of plant damage suggested the insect powder in aqueous solution to be used with neutral soaps. However, it has not yet been possible to to produce commercially usable preparations that are ready for dispatch, since the previous Products lose their effectiveness after a short time and finally completely become ineffective. This phenomenon is due to the fact that the pyrethrum alkaloid is extreme is sensitive to and in contact with small amounts of free alkali is broken down into completely ineffective components by saponification.

Überraschenderweise wurde nun gefunden, daß man diesem Übelstande auf einfachem Wege begegnen kann, wenn man Mischungen aus möglichst weitgehend getrockneter, vorteilhaft neutraler% Seife mit Pyrethrumpulver herstellt.Surprisingly, it has now been found that this is a problem can be met in a simple way if one uses mixtures of as largely dried, advantageous neutral% soap with pyrethrum powder.

Wenn auch bereits vorgeschlagen worden war, feinigemahlene Bestandteile von Pflanzenarten der Gattung Tephrosia aus der Klasse der Leguminosen und der Familie der Papilionaceen mit indifferenten Stoffen, z. B. Schwefel, und emulsionsfördernden Bestandteilen, z. B. Seife, zu vermengen, so konnte nicht vorausgesehen werden, daß bei Verwendung von Pyrethrumpulver haltbare Präparate erzielt werden können, da ja bekanntlich das wirksame Prinzip der Gattung Tephrosia nicht jene große Empfindlichkeit gegen Alkalien aufweist, die dem Pyrethrumalkaloid zukommt.Even if it has already been suggested, finely ground ingredients of plant species of the genus Tephrosia from the class of the legumes and the family of the Papilionaceae with indifferent substances, e.g. B. sulfur, and emulsifying agents Components, e.g. B. Soap to mix, it could not be foreseen that durable preparations can be achieved when using pyrethrum powder, since, as is well known, the active principle of the genus Tephrosia does not have that great sensitivity against alkalis, which belongs to the pyrethrum alkaloid.

Beim Arbeiten nach vorliegender Erfin-(Jung erhält man durchaus lagerbeständige, bequem zu versendende und beim Gebrauch leicht durch Wasser in eine Emutsion überführbare Trockenpräparate. Zweckmäßig wendet man Seife an, deren Fettsäuregehalt ein wenig größer ist, als dem Alkaligehalt entspricht.When working according to the present invention (Jung you get storage-stable, Convenient to ship and easily convertible into an emulsion with water during use Dry preparations. It is advisable to use soap, the fatty acid content of which is a little is greater than the alkali content.

Claims (1)

PATENTANSPRUCII: Mittel zur Insektenvertilgung, bestehend aus trockenen Mischungen von Pyrethrumpulver mit weitgehend getrockneten, neutralen oder überfetteten Seifen.PATENT CLAIM: Means for killing insects, consisting of dry Mixtures of pyrethrum powder with largely dried, neutral or over-greased Soap.
DEV19401D 1924-08-12 1924-08-12 Preparations for killing insects Expired DE465531C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV19401D DE465531C (en) 1924-08-12 1924-08-12 Preparations for killing insects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV19401D DE465531C (en) 1924-08-12 1924-08-12 Preparations for killing insects

Publications (1)

Publication Number Publication Date
DE465531C true DE465531C (en) 1928-09-19

Family

ID=7577821

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV19401D Expired DE465531C (en) 1924-08-12 1924-08-12 Preparations for killing insects

Country Status (1)

Country Link
DE (1) DE465531C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040053670A1 (en) * 2002-09-12 2004-03-18 Markus Rothkranz Gaming device having independently linearly moveable symbol indicators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040053670A1 (en) * 2002-09-12 2004-03-18 Markus Rothkranz Gaming device having independently linearly moveable symbol indicators

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