DE10348433A1 - Composition for controlling pests and fungi, especially useful against potato beetle and potato blight, comprises mixture of algal lime and powdered stone - Google Patents

Abstract

Composition (A) for controlling (a) pests, especially larvae of the Colorado potato beetle (Leptinotarsa decemlineata), and (b) potato blight (Phytophthora infestans) comprises a mixture of 'algal lime' (A1) and powdered stone (A2). ACTIVITY : Plant Antifungal; Insecticide. No details of tests for these activities are given. MECHANISM OF ACTION : Algal lime has a repellent effect on beetles (it 'mineralizes' the leaves, making them less attractive to cutting and sucking insects) and if (A) is consumed, it causes rapid detachment of larvae from the plants (as a result of injury to internal organs) and also inhibits metamorphosis of larvae to adults.

Description

The The invention relates to a pest control agent for application to plant parts for controlling pests, especially the potato beetle and its larvae, as well as to combat the potato-cabbage rot and the method of using the agent.

crops of useful plants are vulnerable for a series of pests, the young plant by eating the leaves and flowers or by injury damage the roots greatly in their growth.

When one of the most famous and dreaded pests the crop potato has always been the Colorado potato beetle (Leptinotarsa decemlineata), in which both the larvae and the beetle on the Scroll eat the potato plant.

Of the Beetle winters in the ground, appears in the spring on the surface and starts to eat the young potato plants. Soon done the oviposition on the underside of the leaves. The hatched larvae also eat holes in the leaves, finally fall on the ground and pupate there at shallow depths. After about four weeks hatches the young beetle, which continues to damage the potato plant until it hibernates.

The Potato plant is also caused by the fungus Phytophtora infestans attacked, the rot symptoms on potato herb and on the tubers.

Versus the Colorado beetle and the potato herb rot Numerous biological and chemical control agents are known but mostly in their production due to numerous chemical Active substances are complex and expensive or complicated genetic engineering Procedures include.

moreover become the most poisonous pesticides easily by rain from the leaves washed off the crop and get into the ground where they do not to act more against the pests and contaminate the drinking water.

It Fertilization is known to increase crop growth through fertilization promote and thereby the vulnerability for pests in total to reduce.

Frequently becomes for soil improvement rock flour or algae lime on the ground Applied as these fertilizer components have a long-term effect and so the resilience permanently improve the plants.

Of the Federal Association of German Garden Friends in Berlin currently points to it Algae lime also has a positive effect on the defense of Colorado potato beetle have. So would the Colorado beetle avoid such soil, which was fertilized with algae limestone. Furthermore, from many garden books Algae lime is also used as a spray mixture for foliar application or as a powder over the leaves are scattered becomes. The effect is mineralization of the leaf mass, i.e. the leaves be harder in their structure and thus become less attractive especially for stinging and sucking pests, e.g. Aphids.

Of the Leaf feeding on However, the potato plant through the Colorado beetle will not continue avoided.

Also the algal lime fertilization sticks on the leaves not long, because the spray mixture evaporates quickly and the next to water Completely is washed off. Algae lime spread as powder falls quickly to the ground and is easily removed from the leaves by wind and rain.

It It is therefore the object of the invention to provide a means of controlling pests, especially the larvae of the Colorado beetle, and to combat the Potato late blight and to provide a method of using the agent, which is simple and cost-effective can be produced uncomplicated by the farmer as well as the layman Can be applied reliably and the infestation of potato plants through the Colorado beetle and the potato-cabbage blight avoids.

Is solved the object of the invention according to the features of the main claim 1.

The further claims have advantageous mixing ratios the means of content.

in the single ancillary claim and the dependent claim being referred to a method of using the agent according to the invention defined.

The inventive agent for fighting of pests, especially the larvae of the Colorado beetle, and to combat the Potato late blight, is characterized by a mixture of algae lime and rock flour.

These Mixture is advantageously dissolved in water in a ratio of 1: 1: 10, so that a pouring and sprayable liquid arises.

These liquid is preferably several times at intervals of about four weeks on the Applied plant, of course, the first casting or the first injection immediately after the appearance of the first leaf parts should be done.

The liquid according to the invention, the first only from original as a fertilizer known components acts as a liquid mixture primarily as an agent for fighting of pests, since e.g. Potato beetle larvae on leaves and stalks eat strongly adhering agents and rapidly thereafter by damaging their organs perish. Also, the metamorphosis of the larvae becomes the beetle damage of internal organ structures in the process of that no live beetles get more out of the doll.

Also is due to the mixture according to the invention the spread of potato-grass rot caused by a fungus stopped.

By the strong adhesion of the mixture according to the invention to the leaves and stalks The mixture still works reliably even after numerous rains pests and fertilize, after all, after all was washed into the soil, in a known manner, the soil.

The inventive agent Consists of cheap, easy to procure components and can simply be mixed and applied by the layman with water. The effectiveness of the agent is so far only for the Colorado beetle and the causative agent of potato cabbage rot approved been; but it is assumed that the inventive agent also on other crops and against other pests.

at Need can be by addition another pest control Means the spectrum of action can be easily extended, so that also other types of pests be reliably controlled by reducing the use of chemical pesticides can.

Of the Damage to potato plants such as e.g. through the Colorado beetle or the cabbage blight However, causing fungus can be without further harmful to the environment Pesticides the use of the agent according to the invention reliably reduced to a significant extent according to the described method become.

Claims (12)

Means for controlling pests, especially the larvae of the Colorado beetle, and to combat the Potato late blight, characterized by a mixture of algae limestone and rock flour. Means to combat of pests, especially the larvae of the Colorado beetle, and to combat the Potato late blight according to claim 1, characterized in that the mixture of algal lime and rock flour in proportion 1: 1 exists. Means to combat of pests, especially the larvae of the Colorado beetle, and to combat the Potato late blight according to claim 1, characterized in that the mixture of a larger share consists of algal lime and a smaller proportion of rock flour. Means to combat of pests, especially the larvae of the Colorado beetle, and to combat the Potato late blight according to claim 1, characterized in that the mixture of a larger share consists of rock flour and a smaller proportion of algal lime. Means to combat of pests, especially the larvae of the Colorado beetle, and to combat the Potato late blight according to claim 1, characterized in that the mixture in addition the components algae limestone and rock flour from at least one another ingredient that has a pest repellent effect. Means to combat of pests, especially the larvae of the Colorado beetle, and to combat the Potato late blight according to claim 5, characterized in that the mixture of algal lime and rock flour around at least one chemical pesticide added is. Means to combat of pests, especially the larvae of the Colorado beetle, and to combat the Potato late blight according to claim 5, characterized in that the mixture of algal lime and rock flour around at least one organic pesticide added is. Means to combat of pests, especially the larvae of the Colorado beetle, and to combat the Potato late blight according to one of the preceding claims, characterized that the mixture of algae limestone and rock flour around at least one chemical and a biological pesticide is supplemented. Means to combat of pests, especially the larvae of the Colorado beetle, and to combat the Potato late blight according to one of the preceding claims, characterized that the mixture dissolved in water is. Means to combat of pests, especially the larvae of the Colorado beetle, and to combat the Potato late blight according to one of the preceding claims, characterized that the mixture consists at least of algal lime, rock flour and water in the mixing ratio 1: 1: 10th Method of using the composition for controlling pests, especially the larvae of the potato beetle, and to combat the potato-cabbage rot, thereby marked that - the Mixture, at least consisting of algae limestone and rock flour, with as much water is stirred that a casting or sprayable liquid arises - the at least once over the above-ground plant parts is poured. Method of using the composition for controlling pests, especially the larvae of the potato beetle, and to combat potato late blight Claim 11, characterized in that the liquid mixture several times in Distance of four weeks is applied to the plant.