ridinium chloride (CPC); Polyethoxylated tallow amine (POEA); Benzalkonium chloride (BAC); Benzethonium chloride (BZT); Zwitterionic (amphoteric); CHAPS (3-[(3- Cholamidopropyl )dimethy !ammonia ]-1-propanesulfonate); Dodecyl betaine; Cocamidopropyl betaine; Coco ampho gly› cinate; Nonionic; Alkyl poly(ethylene oxide); Polysorbates: based on Polyoxyethylene Glycol, including the Tween series ( ex. Tween 20, Tween 80), the Brij series]], the [[ ex. Triton detergent[Triton]] series (ex. Triton X-100); Alkylphenol poly(ethylene oxide); Copolymers of poly(ethylene oxide) and poly(propylene oxide) ( commercially called Poloxamers or Poloxamines); Alkyl polyglucosides; Octyl glucoside; Decyl maltoside; Fatty alcohols; Cetyl alcohol; Oley! alco› hol; Cocamide MEA, cocamide DEA; Dodecyl dimethy› lamine oxide 

[0066] The term "sprayer," as used herein, includes all types of sprayers for liquid and dry compositions. The spray› ers contemplated include, but are not limited to: Hand Spray Bottles with volumes less than about 1 liter; Garden Sprayer with volumes less than about 10 liters; Mounted Sprayer› Semi Hydraulic; Trailed Sprayer; Mounted Sprayer With Hydraulic Boom; Trailed Sprayer With High Wheel; Trailed Sprayer High Wheel With Electronic Control Unit; Mounted Sprayer-Basic Type; Mounted Sprayer-Basic Type With Clean Water Tank; Garden Sprayer; High Pressure Dia› phragm Pump; Power Sprayer With Electric or Fuel Powered Engine; Fertilizer Spreader; Interrow Rotary Cultivator. One of ordinary skill in the art will understand that any type of sprayer capable of spraying liquid or dry chemicals may be used for this invention. 

[0067] The term "propionic acid," as used herein, denotes propionic acid, and other derivatives having a functional chemical equivalents having similar structures to H(CH$_{2}$ ) nCOOH acid. Other names for propionic acid include: Car› boxyethane, Ethanecarboxylic acid, Ethylformic acid, Meta› cetonic acid, Methyl acetic acid, Propanoic acid. Propionic acid has physical properties intermediate between those of the smaller carboxylic acids, formic and acetic acids, and the larger fatty acids. It is miscible with water, but can be removed from water by adding salt. As with acetic and formic acids, it consists of hydrogen bonded pairs of molecules both as the liquid and vapor. Propionic acid displays the general properties of carboxylic acids, wherein it can form amide, ester, anhydride, and chloride derivatives, all of which are included as functional equivalents. It can undergo alpha-ha› logenation with bromine in the presence of PBr$_{3 }$ as catalyst (the HVZ reaction) to form CH$_{3}$CHBrCOOH. Currently the world’s largest producer of propionic acid is BASF, with approximately 80 kt/a production capacity. 

[0068] The term "acidity regulators", or "pH control agents" are generally denoted as food additives used to change or maintain pH (acidity or basicity) in a composition. They can be organic or mineral acids, bases, neutralizing agents, or buffering agents. 

[0069] One aspect of the present invention pertains to a method employing an acidified pesticide to reduce, inhibit, or eradicate a large or small infestation that has resulted in a population growth of an invasive species of frog or other living soft-bodied organism, wherein the acidified pesticide has a minimum phytotoxic effect on local flora and fauna. Here an effective amount (i.e. in that the amount is sufficient to exert its lethal pesticide properties) of the composition is 

## Preferred Embodiments 

allowed to contact ( e.g. such as by drenching, setting, laying, mixing, misting or spraying) the infestation area. 

[0070] Although not wanting to be bound by theory, no absolute methods are available for completely eliminating invasive species in other environments without some adverse effects to some plants, animals, insects, fowls, reptiles, and the like, however, the acidified pesticide composition and method thereof do offer a economical and practical solution for reducing the population of an infestation area without significant damage to local flora and fauna. The compositions and methods of making and using acidic pesticides are described in the examples below: 

[0071] The following examples are provided to further illustrate this invention and the manner in which it may be carried out. It will be understood by one of ordinary skill in the art, however, that the specific details given in the examples have been chosen for purposes of illustration only and not be construed as limiting the invention. 

[0072] Acidic Calcium Sulfate ("ACS"). 

[0073] A preferred method of preparing AGIIS involves mixing a mineral acid with a Group IIA hydroxide, or with a Group IIA salt of a di basic acid, or with a mixture of the two Group IIA materials. In the mixing, a salt of Group IIA is also formed. Preferably, the starting Group IIA material or mate› rials selected will give rise to, and form, the Group IIA salt or salts that are sparingly soluble in water. The preferred mineral acid is sulfuric acid, the preferred Group IIA hydroxide is calcium hydroxide, and the prefer Group HA salt of a dibasic acid is calcium sulfate. Other examples of Group IIA salt include calcium oxide, calcium carbonate, and "calcium bicarbonate." 

[0074] Thus, for example, AGIIS can be prepared by mix› ing or blending starting materials given in one of the follow› ing scheme with good reproducibility: 

[0075] (1) H$_{2}$SO$_{4 }$ and Ca(OH)$_{2}$ ; 

[0076] (2) H$_{2}$SO$_{4}$ , Ca(OH)$_{2}$ , and CaCO$_{3}$ ; 

[0077] (3) H$_{2}$ SO$_{4}$ , Ca(OH)$_{2}$ , CaCO$_{3}$ , and CO$_{2 }$ (gas); 

[0078] (4) H$_{2}$SO$_{4}$ , CaCO$_{3}$ , and Ca(OH)$_{2}$ ; 

[0079] (5) H$_{2}$SO$_{4}$ , Ca(OH)$_{2}$ , and CaSO$_{4}$ ; 

[0080] (6) H$_{2}$SO$_{4}$ , CaSO$_{4}$ , CaCO$_{3}$ , and Ca(OH)$_{2}$ ; 

[0081] (7) H$_{2}$ SO$_{4}$ , CaSO$_{4}$ , CaCO$_{3}$ , and CO$_{2 }$ (gas); and 

[0082] (8) H$_{2}$ SO$_{4}$ , CaSO$_{4}$ , CaCO$_{3}$ , CO$_{2 }$ (gas), and Ca(OH)$_{2}$ . 

[0083] Preferably, AGIIS is prepared by mixing calcium hydroxide with concentrated sulfuric acid, with or without an optional Group IIA salt of a dibasic acid (such as calcium sulfate) added to the sulfuric acid. The optional calcium sul› fate can be added to the concentrated sulfuric acid prior to the introduction of calcium hydroxide into the blending mixture. The addition of calcium sulfate to the concentrated sulfuric acid appears to reduce the amount of calcium hydroxide needed for the preparation of AGIIS. Other optional reactants include calcium carbonate and gaseous carbon dioxide being bubbled into the mixture. Regardless of the use of any optional reactants, it was found that the use of calcium hydroxide is desirable. 

## EXAMPLES 

## Example 1 

## ACIDS 

