Liquid dispensing system, components and features thereof, and methods of use thereof

A pesticide product comprising a pesticide composition contained within a bottle, wherein the bottle defines an interior volume and is configured to affix to a liquid dispensing fixture adapted to spray the pesticide composition and comprises a neck terminating in a rim circumscribing and defining a main opening through the neck to the interior volume, a fluid passage fitting configured to fit over the rim and/or within the main opening of the bottle and fluidly connected to a draw tube disposed inside the bottle and extending from proximity of the main opening down to proximity of a bottom extent of the interior volume, and a removable cap disposed over the main opening, a structure defining a vacuum relief port providing fluid communication between the interior volume and an outside environment, and a check valve structure operably associated with the vacuum relief port and configured to automatically permit air to flow from the outside environment, through the vacuum relief port, into the interior volume upon development of a vacuum within the interior volume, and to restrict or prevent fluid from flowing from the interior volume out through the vacuum relief port;

• and the pesticide composition comprising from about 45% to about 99% by weight of the composition of water, from about 0.1% to about 10% by weight of the composition of at least one active ingredient selected from the group consisting of peppermint oil, corn mint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cinnamon oil, cedarwood oil, garlic oil, geranium oil, lemongrass oil, geraniol, eugenol, nerol, vanillin, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-cymene, linalool, eucalyptol/1,8-cineole, alpha-pinene, bornyl acetate, gamma-terpinene, and mixtures thereof, and from about 1% to about 15% by weight of the composition of an anionic surfactant.