Betz Laboratories, Inc.

Betzdearborn, Inc.

Dwight P Davis

Edmund J Bockowski

Larry A Lyons

Paul Swered

Donald Carroll Roe

Kevin C Manning

Cato Russell McDaniel

Patric L Friend

Marc Verschoren

Francis G Doherty

The present invention provides for methods for fumigating soil containing deleterious organisms such as nematodes. The methods utilize an effective amount of acrolein over sole demand for acrolein which when added to the soil will control the organisms but will not exhibit phytotoxicity towards the existing or future plant life.

Methods for fumigating soil

The present invention provides for methods for fumigating soil containing deleterious organisms such as nematodes. The methods utilize an effective amount of acrolein which when added to the soil will control the organisms but will not exhibit phytotoxicity towards the existing or future plant life and an effective amount of a detoxification compound such as for example: sulfites, bisulfites, ammonia or ammonium compounds.

Methods for fumigating soil using acrolein

A foam carrier for a dust control agent and a biological control agent is provided to control fugitive dust dissemination and biological activity in bulk/granular solids.

Biological and dust control methods for bulk/granular solids

A foam carrier for a dust control agent and a pesticidal material is provided to control fugitive dust dissemination and biological activity in bulk/granular solids.

Biological & dust control methods for bulk/granular solids

Methods are provided for inhibiting the production of acid in acid mine waters by controlling the growth of Thiobacillus ferrooxidans in the mine waters by adding an effective amount of acrolein. This will reduce acid mine drainage to other aqueous systems. The methods comprise adding from about 0.1 to about 10 parts acrolein per million parts of the mine water for which acid production inhibition is sought.

Methods for inhibiting the production of acid in acid mine waters

A method of controlling the fouling potential of macroinvertebrates, such as mollusks, in aqueous systems which comprises adding to the system an effective controlling amount of a water-soluble alkyl guanidine salt wherein the alkyl group has from about 8 to about 18 carbons.

Method for controlling macroinvertebrates

A method of controlling the fouling potential of macroinvertebrates, such as mollusks, in aqueous systems which comprises adding to the system an effective controlling amount of a water-soluble quaternary ammonium salt having the following structure: ##STR1## wherein R.sub.1 is an alkyl group having about 6 to 24 carbons; R.sub.2 is an alkyl, aryl or arylalkyl group having about 6 to 24 carbons; R.sub.3 and R.sub.4 are alkyl groups having about 1 to 4 carbons; and X is chloride, bromide, sulfate, bisulfate, nitrate or acetate. Preferably, the quaternary ammonium salt is water-soluble alkyl dimethyl benzyl ammonium chloride having an alkyl chain length from C.sub.6 to C.sub.24 and, most preferably, it has an alkyl distribution of about 40% C.sub.12, 50% C.sub.14 and 10% C.sub.16.

A method of controlling the fouling potential of mollusks in aqueous systems which comprises adding to the system an effective controlling amount of a nitrostyrene compound and an alkyl thiocyanate compound.

Method for controlling mollusks

To control the fouling potential of mollusks in aqueous systems, an effective amount for the purpose of an effective nitrostyrene compound is added to said systems.

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Holland, PA, United States of America

Dwight P Davis