Corn Earworm Larvae (Helicoverpa zea) Bounded on Warmer Direction (Thermotropism)  

Robert J. Zhu1 , Mariana Krugner2
1. Haide Institute of Tropical Agricultural Resources (HITAR), Hainan, 572025, China
2. SynTech Research Inc. Sanger, CA, 93657, USA
Author    Correspondence author
Biological Evidence, 2014, Vol. 4, No.   doi: 10.5376/be.2014.04.0001
Received: 13 Sep., 2014    Accepted: 30 Oct., 2014    Published: 18 Nov., 2014
© 2014 BioPublisher Publishing Platform
Preferred citation for this article:

Zhu and Krugner, 2014, Corn Earworm Larvae (Helicoverpa zea) Bounded on Warmer Direction (Thermotropism), Biological Evidence, Vol.4, No.1 1-5 (doi: 10.5376/be.2014.04.0001)

Abstract

Thermotropism of corn earworm neonates was observed during Bt (Bacillus thuringiensis) toxicity bioassay against corn earworm (Helicoverpa zea). Six photos provided in this report convinced us that the corn earworm larvae moved to a warmer area within 24 hours of hatching. Possible reasons for the thermotropism are discussed but are not yet clear.

Keywords
Corn earworm; Helicoverpa zea; Larva; Thermotropism
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