DE627144C - Process for the production of agents used for pest control - Google Patents
Process for the production of agents used for pest controlInfo
- Publication number
- DE627144C DE627144C DE1930627144D DE627144DD DE627144C DE 627144 C DE627144 C DE 627144C DE 1930627144 D DE1930627144 D DE 1930627144D DE 627144D D DE627144D D DE 627144DD DE 627144 C DE627144 C DE 627144C
- Authority
- DE
- Germany
- Prior art keywords
- production
- pest control
- water
- copper
- arsenic
- 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
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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
-
- 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
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
- A01N59/20—Copper
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)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
Verfahren zur Herstellung von zur Pflanzenschädlingsbekämpfung dienenden Mitteln Die Erfindung betrifft ein Verfahren zur Herstellung von zur Pflanzenschädlingsbekämpfung geeigneten Mitteln unter Verwendung von Thiohärnstoff und zeichnet sich dadurch aus, daß Thinharnstoff mit Kupfersalzen und gegebenenfalls arseniger oder Arsensäure in Wasser eingetragen zur Reaktion gebracht und der entstehende Niederschlag auf bekanntem Wege in Pulverform übergeführt wird.Process for the production of plant pest control Agents The invention relates to a process for the production of plant pests suitable means using thiourea and is characterized by this from that thinurea with copper salts and possibly arsenic or arsenic acid registered in water to react and the resulting precipitate is converted into powder form in a known way.
Die Kupfersalze können gegebenenfalls in ammoniakalischer Lösung zur Verwendung kommen: Es ist bekannt, daß Kupfersalze - beispielsweise Kupfersulfat oder als Kupferkalkbrühe - als Pflanzenschädlingsbekämpfungsmittel benutzt werden. Es ist ebenfalls bekannt, Alkali-, Erdalkali- oder andere Metallsalze der Arsensäure oder arsenigen Säure zum gleichen Zweck zu verwenden. Auch Thioharnstoff wurde bereits zur Bekämpfung von Pflanzenschädlingen angewandt. Erfahrungsgemäß haben jedoch diese Mittel in vielen Fällen versagt.The copper salts can optionally be used in ammoniacal solution Use come: It is known that copper salts - for example copper sulfate or as a copper lime broth - used as a plant pest control agent. It is also known to use alkali, alkaline earth or other metal salts of arsenic acid or arsenic acid for the same purpose. Thiourea has also been used used to control plant pests. However, experience has shown that these Means failed in many cases.
Es hat sich herausgestellt, daß die gemäß der Erfindung hergestellten Kupfer-Thioharnstoff- oder I%'-upferarsen-Thioharnstoff-ljerbindungen die Wirkung hochprozentiger Arsengifte, wie Blei- und Calciumarsenat, übertreffen und somit bei weitem auch wirkungsvoller sind als Thioharnstoff; dessen Wirkung als Fraßgift, allein angewandt, bekanntlich sehr gering ist.It has been found that the manufactured according to the invention Copper thiourea or copper arsenic thiourea compounds have the effect high percentage arsenic toxins, such as lead and calcium arsenate, surpass and thus are also far more effective than thiourea; its effect as a food poison, applied alone, is known to be very low.
Wenn beispielsweise, wie üblich, auf cool Wasser 400 g Calciumarsenat mit 40 As@O, oder Söog Bleiarsenat mit 3o% As,05 gegeben werden muß, um eine gute insekticide Wirkung zu erzielen, so gebraucht man auf die gleiche Menge Wasser 400.-. des obengenannten, aber gestreckten Mittels mit 8 % Ase 05. (Zwecks Erhöhung der Schweb- und Haftfähigkeit wird -das ursprünglich etwa i z bis i 2 % Ase 05 enthaltende Mittel durch Zugabe eines indifferenten Stoffes auf einen Gehalt von 8% As,05 gestreckt.) Es wird also hier nur etwa 1/5 des Giftstoffes verbraucht wie bei den bekannten Arsengiften, um eine gleiche Wirkung zu erreichen.For example, if, as usual, 400 g calcium arsenate in cool water with 40 As @ O, or so-called lead arsenate with 3o% As, 05 must be given to get a good To achieve an insecticidal effect, 400.- are used for the same amount of water. of the above but extended agent with 8% Ase 05. (To increase the The ability to float and adhere is what originally contained about i z to i 2% Ase 05 Medium stretched to a content of 8% As, 05 by adding an inert substance.) So here only about 1/5 of the toxin is consumed as with the known ones Arsenic poisons to achieve the same effect.
Beispiele i. 5o g Thioharnstoff, zog I%upfercarbonat werden in 5oo g Wasser ,eingetragen und die Lösung bis zur Fällung eines voluminösen Niederschlages gerührt. Der Niederschlag wird filtriert, ausgewaschen, getrocknet und pulverisiert.Examples i. 5o g thiourea, I% copper carbonate be added to 5oo g of water, registered and the solution until a voluminous precipitate has precipitated touched. The precipitate is filtered, washed, dried and pulverized.
2. 4o ccm Ammoniak mit einem NH3-Gehalt von z i % werden mit i Zoo
g Wasser verdünnt. Hierauf werden. in die Lösung
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE627144T | 1930-10-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE627144C true DE627144C (en) | 1936-03-09 |
Family
ID=6578352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1930627144D Expired DE627144C (en) | 1930-10-22 | 1930-10-22 | Process for the production of agents used for pest control |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE627144C (en) |
-
1930
- 1930-10-22 DE DE1930627144D patent/DE627144C/en not_active Expired
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