Abstract:The attraction of melon thrips, Thrips palmi Karny Thysanoptera: Thripidae , to reflective-type traps combined with blue sticky board and a blue light emitting diode LED array was investigated in July 2011 in an eggplant greenhouse. The peak wavelength of the blue LED array was 470 nm. The LED array was placed close to the plants and directed toward the sticky board. The number of adult thrips caught by the reflective-type trap at a light intensity of 3 10 17 photons/ m 2 ·s was significantly greater than the number caught by the control, a non-illuminated trap. Furthermore, the number of adult thrips caught by the reflective-type trap was significantly greater than that for the control during 18:00-21:00 and 21:00-0:00. Additionally, significantly more female adult thrips were caught by the reflective-type trap than by the non-illuminated trap, especially during the 18:00-21:00 time period.
Control of melon thrips, rips palmi Karny, sweetpotato white y, Bemisia tabaci (Gennadius) and legume leafminer, Liriomyza sativae Blanchard on greenhouse eggplant and cucumber by a granule formulation of an entomopathogenic fungus, Metarhizium anisopliae
Examination of long-term suppression of aphid density through augmentative release of larvae of flightless Harmonia axyridis (Coleoptera: Coccinellidae) and adults of Aphidius colemani (Hymenoptera: Aphidiinae) onto eggplants in commercial greenhouse, with a combination of sweet alyssum intercropping and brine-shrimp egg provision
AbstractThe aphid-controlling effect of flightless Harmonia axyridis and Aphidius colemani was examined for eggplants, which insectary plants were intercropped with and alternative diet for H. axyridis was supplied on, in a commercial greenhouse in Osaka Prefecture, Japan. By releasing H. axyridis larvae (second and third instar) and A. colemani adults thrice and twice, respectively, onto eggplants intercropped with sweet alyssum Lobularia maritima and with the provision of brine shrimp (Artemia sp.) eggs, density of the green peach aphid Myzus persicae was maintained low for approximately three months (late April-late July).
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