All-Russian Scientific Research Institute of Veterinary Entomology and Arachnology, Branch of Federal State Institution Federal Research Centre Tyumen Scientific Centre of Siberian Branch of the Russian Academy of Sciences (ASRIVEA -Branch of Tyumen Scientific Centre SB RAS), 2 Institutskaya str., Tyumen, 625041, Russia
*Corresponding author's E-mail: jroschewitsch@mail.ru
Online published on 4 January, 2023.
The paper presents data on the test of the DEET 500 g/l preparation and recommends its use to protect horses from the attack of horseflies. DEET 500 g/l is a ready-made working solution of diethyltoluamide (500 g/l) in organic solvents. It is a light yellow oily liquid with a specific odor. The repellent effect of the preparation was studied by simultaneous accounting of the number of attacking horseflies on animals before and after treatment with the preparation in different doses, followed by the calculation of the repellency coefficient expressed as a percentage, and the duration of preservation of the repellent effectiveness of various constant effectiveness expressed in hours. The authors performed studies of repellent effectiveness in field experiments using DEET 500 g/l in dosages of 56 and 84 ml. The preparation in a dosage of 84 ml showed a high level of repellent activity for more than 8 hours.
DEET, Diethyltoluamide, Diptera insects, Horseflies, Repellent
