A vacuum shut off valve mechanism for a soil fumigant applicator includes a pneumatic cylinder that is operably connected to respective fumigant dispensing tubes and shanks of the applicator through a flow divider. A pair of switch operated valves respectively control the flow of fumigant to the flow divider and operation of the pneumatic cylinder. In a first switch state a first valve is opened to deliver fumigant to the flow divider and a second valve operates the pneumatic cylinder to pressurize the flow divider and allow delivery of the fumigant to the dispensing shanks. In a second state, the first valve is closed and the second valve operates the pneumatic cylinder to draw a vacuum, which restricts dripping and leaking of residual fumigant from the tubes and dispensing shanks.

Disclosed is a fumigation vaporizer capable of quickly vaporizing a fumigant, which is widely used in agriculture or quarantine to control insects or weeds, thereby safely and effectively carrying out fumigation, as compared to a conventional process. The fumigation vaporizer includes a housing, a fumigant supply pipe, a heater, a non-explosive gas supply member, a gas supply pipe, a vessel-type heater, a gas discharge pipe, and a controller. The housing is provided with a heating hollow portion at the lower portion of the inner cavity, in which the non-explosive gas heated and supplied by the vessel-type heater heats a bottom surface of the inner cavity while passing through the heating hollow portion. A bottom surface of the heating hollow portion is provided with an inlet port through which the non-explosive gas passes, and a top surface of the heating hollow portion opposite to the inlet portion is provided with an outlet port through which the non-explosive gas passing the heating hollow portion is supplied to the gas discharge pipe installed to the inner cavity.

Disclosed is a fumigation vaporizer capable of quickly vaporizing a fumigant, which is widely used in agriculture or quarantine to control insects or weeds, thereby safely and effectively carrying out fumigation, as compared to a conventional process. The fumigation vaporizer includes a housing, a fumigant supply pipe, a heater, a non-explosive gas supply member, a gas supply pipe, a vessel-type heater, a gas discharge pipe, and a controller. The housing is provided with a heating hollow portion at the lower portion of the inner cavity, in which the non-explosive gas heated and supplied by the vessel-type heater heats a bottom surface of the inner cavity while passing through the heating hollow portion. A bottom surface of the heating hollow portion is provided with an inlet port through which the non-explosive gas passes, and a top surface of the heating hollow portion opposite to the inlet portion is provided with an outlet port through which the non-explosive gas passing the heating hollow portion is supplied to the gas discharge pipe installed to the inner cavity.

A locust swarm amelioration method, system, and computer program product, includes detecting a locust swarm either about to form, or having formed, and controlling a drone to perform an amelioration action against the locust swarm about to form or having been formed.

A locust swarm amelioration method, system, and computer program product, includes detecting a locust swarm either about to form, or having formed, and controlling a drone to perform an amelioration action against the locust swarm about to form or having been formed.

An electronic cigarette and a method for supplying a constant power therein, the electronic cigarette comprises an atomizer with a heating wire. The electronic cigarette also comprises a power supply module for supplying power to the heating wire to heat the heating wire, and further comprises a microprocessor, a detecting module connected to the microprocessor, and a voltage adjusting module. A preset constant power can supply to the heating wire of the atomizer in the electronic cigarette, so that a consistent heating power can be applied to each of the electronic cigarettes produced in batch production, and smoke amount and flavor of each of the electronic cigarettes are more consistent, thereby better meeting demands of consumers.

The invention relates to a composition for attracting Lepidopterous insects comprising a vapour blend of acetic acid and one or more compounds of formula (I), (I) wherein R is selected from the group comprising CH.sub.2OH, CN, NC, and OH; and to methods of using the composition to attract, detect, survey, monitor and/or control Lepidopterous insects.

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The invention relates to a composition for attracting Lepidopterous insects comprising a vapour blend of acetic acid and one or more compounds of formula (I), (I) wherein R is selected from the group comprising CH.sub.2OH, CN, NC, and OH; and to methods of using the composition to attract, detect, survey, monitor and/or control Lepidopterous insects.

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An apparatus for disinfestation of beehives may include housing and a controller. The housing may include a receiving area for receiving a carrier comprising a fumigant and an automatic supply system adapted to extract a predetermined amount of fumigant from the receiving area. The automatic supply system may include a delivery mechanism that is configured to extract a first predetermined portion of the carrier comprising the predetermined amount of fumigant from the receiving area. The controller may be configured to control the automatic supply system to extract the first portion of the carrier according to a treatment protocol.

An apparatus for disinfestation of beehives may include housing and a controller. The housing may include a receiving area for receiving a carrier comprising a fumigant and an automatic supply system adapted to extract a predetermined amount of fumigant from the receiving area. The automatic supply system may include a delivery mechanism that is configured to extract a first predetermined portion of the carrier comprising the predetermined amount of fumigant from the receiving area. The controller may be configured to control the automatic supply system to extract the first portion of the carrier according to a treatment protocol.