Toxicity and transmission of thiamethoxam in the asian subterranean Termite Coptotermes gestroi (Isoptera: Rhinotermitidae)

Issue Date

12-2014

Abstract

The toxicity and horizontal transmission of thiamethoxam was evaluated in the workers of the Asian subterranean termite Coptotermes gestroi Wasmann (Isoptera: Rhinotermitidae). Brief exposure to sand treated with thiamethoxam at concentration ranging from 0.25 to 50 mg/ml resulted in a dose-dependent mortality in C. gestroi. Sand treated with 50 mg/ml thiamethoxam resulted in very high mortality within 30-60 min of exposure. Termites exposed to sand treated with 0.25-25 mg/ml exhibited delayed toxicity and nonrepellency in C. gestroi. A horizontal transmission study using 25 mg/ml of thiamethoxam at donor-recipient ratio of at least 2:5 (treated: untreated) indicated that thiamethoxam can be transferred between exposed and unexposed workers, resulting in significant termite mortality in unexposed termites within 1-3 d post exposure.

Source or Periodical Title

Journal of Insect Science

Volume

14

Issue

1

Page

1-4

Document Type

Article

Physical Description

tables

Language

English

Subject

Coptotermes gestroi, Horizontal transmission, Nonrepellent, Termite, Thiamethoxam

Identifier

doi:0.1093/jisesa/ieu084.

Digital Copy

yes

Link to Full Text

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