Vinelina Yankova, Dima Markova


Botanical insecticides are a small fraction of the total volume of pesticides. Nevertheless, they are of importance in the control of the pests in vegetable crops. Sometimes the phytopesticides provide the most effectiveness control on pests that have become resistant to other insecticides. Most of these insecticides are with short period of disintegration in the environment and pose a relatively low risk both for non-target organisms and beneficial species. They are naturally occurring or derived products and they are accepted into organic and integrated production systems. The product Piretro Natura EC (a. s. pyrethrins) has been tested under greenhouse conditions to determine its biological activity against cotton leaf aphid (Aphis gossypii Glov.), peach aphid (Myzus persicae Sulz.) and greenhouse whitefly (Trialeurodes vaporariorum Westw.). Very good aphicidal activity of the tested product was found at a dose of 75 ml/da on the 3rd-5th day after treatment. A good effectiveness (79,74%) of the Piretro Natura EC was observed at a dose of 75 ml/da, towards the greenhouse whitefly adults on the 5th day after treatment. The effectiveness of this product towards the larvae of the greenhouse whitefly was satisfactory – 60,68%.


pyrethrum, pests, greenhouses, vegetable crops

Full Text:



Casida J. E., G. B. Quistad, 1995. Pyrethrum flowers: production, chemistry, toxicology and uses. Oxford University Press, Oxford, 356.

Isman M. B., 2006. Botanical Insecticides, Deterrents, and Repellents in Modern Agriculture and an Increasingly Regulated World. Annu. Rev. Entomol. 51:45–66.

Jababu N., T. Kopta, R. Pokluda, 2016. Insecticidal activity of neem, pyrethtrum and quassia extracts and their mixtures against diamondback moth larvae (Plutella xylostella L.). MendelNet, 84-89.

Khater H. F., 2012. Prospects of Botanical Biopesticides in Insect Pest Management. Pharmacologia, v. 3 (12), 641-656.

Regnault-Roger C., B. J. R. Philogène, 2008. Past and Current Prospects for the Use of Botanicals and Plant Allelochemicals in Integrated Pest Management. Pharmaceutical Biology, Vol. 46, № 1-2, 41-52.

Weinzierl R. A., 2000. Botanical Insecticides, Soaps, and Oils. Biological and Biotechnological control of insect pests, 110-146.


  • There are currently no refbacks.

New knowledge Journal of science is financed by the National Science Fund of the Republic of Bulgaria - contract № КП-06-НП1/5 of 17.12.2019 in the competition of Bulgarian scientific periodicals – 2019

New knowledge Journal of science is financed by the National Science Fund of the Republic of Bulgaria – contract № ДНП 05/52 от 22.12.2016 in the competition of Bulgarian scientific periodicals – 2016

The contents of this publication do not necessarily reflect the position or opinion of the National Science Fund of the Republic of Bulgaria. The opinions expressed are those of the author(s) only and should not be considered as representative of the National Science Fund’s official position.

National Science Fund of Bulgaria