Insect attractant lighting method and insect attractant lighting system

Abstract

In an insect pest attraction lighting system which irradiates a field with attraction light for attracting insect pests to keep the insect pests away from a plant, an effect of protection against diurnal insect pests is improved. An insect pest attraction lighting systemincludes: a setting unitwhich sets, as an operating time zone, an arbitrary time zone during nighttime; an artificial sunlight source unitwhich irradiates the entirety of an interior of a plastic greenhouse Hwith artificial sunlight which does not include wavelength components of 500 to 600 nm, in the operating time zone; and an attraction light source unitwhich irradiates a portion of the interior of the plastic greenhouse Hwith attraction light in the operating time zone. The irradiation of the artificial sunlight during nighttime increases the activity of diurnal insect pests B, and the attraction light attracts the activity-increased diurnal insect pests B, whereby the activity-increased diurnal insect pests Bcan be kept away from plants P. Thus, protection against the diurnal insect pests Bcan positively be provided. In addition, since the artificial sunlight does not include light in a wavelength range of 500 to 600 nm which is reflected by the plants P, it is made difficult for the diurnal insect pests Bto visually recognize the plants P, and therefore, an effect of protection against insects is enhanced further.