Modified Ultrsonic Actograph for Monitoring Activity of Lepidopterous Larvae

Item Description

dc.contributor.author	Johnson, Marshall W	en_US
dc.contributor.author	Toscano, Nick C	en_US
dc.contributor.author	Jones, Vincent P	en_US
dc.contributor.author	Bailey, J Blair	en_US
dc.date.accessioned	2009-09-09T01:22:24Z	en_US
dc.date.available	2009-09-09T01:22:24Z	en_US
dc.date.issued	1986-12	en_US
dc.identifier.citation	Johnson MW, Toscano NC, Jones VP, Bailey JB. 1986. Modified ultrsonic actograph for monitoring activity of Lepidopterous larvae. Proc Hawaiian Entomol Soc 27:141-146.	en_US
dc.identifier.issn	0073-134X	en_US
dc.identifier.uri	http://hdl.handle.net/10125/11217	en_US
dc.description.abstract	An ultrasonic actograph was modified to detect the slow movements typical of lepidopterous larvae. A differential instrumentation amplifier increased the sensitivity of the instrument. Activity patterns of 5th instars of Spodoptera exigua (Hubner) (Lepidoptera: Noctuidae) and Sabulodes aegrotata Guenee (Lepidoptera: Geometridae) were determined using the modified actograph. S. exigua larvae were active ca. 339 minutes of the day with significantly greater photophase activity during 0600-1000 and 1100-1300 hrs as compared to scotophase activity during 0000-0400 and 2200-2400 his. S. aegrotata larvae were active ca. 421 minutes of the day with greater activity during the scotophase period.	en_US
dc.format.extent	6 pages	en_US
dc.publisher	Hawaiian Entomological Society	en_US
dc.title	Modified Ultrsonic Actograph for Monitoring Activity of Lepidopterous Larvae	en_US
dc.type	Article	en_US
dc.type.dcmi	Text	en_US