Registration of tebufenozide renewed in Canada 07-09-2019

Health Canada released a document (Proposed Re-evaluation Decision PRVD2019-06, Tebufenozide and Its Associated End-use Products) on June 11, 2019, showing that Canada’s Pest Management Regulatory Agency (PMRA) approved to renew the registration of tebufenozide. It is said on the government website that “this document is subject to a 90-day public consultation period, during which the public including the pesticide manufacturers and stakeholders may submit written comments and additional information to the PMRA. The final re-evaluation decision will be published taking into consideration the comments and information received.”

Canada is reevaluating pesticides in terms of public health risks

The government of Canada announced a statement on its website, saying that “Tebufenozide is an insect growth regulator used to control Lepidoptera larvae on apples, pears, ornamental crab apple trees, cranberries, bushberries, greenhouse vegetables, greenhouse ornamentals, and forests and woodlots (restricted use). Tebufenozide is applied using ground and aerial equipment. It is registered for commercial use and can be used in residential areas by commercial applicators on ornamentals and trees.”

In Canada, tebufenozide is under re-evaluation by the PMRA  which re-evaluates registered pesticides to determine whether the use of these products continues to be acceptable in terms of value, human health and the environment according to current standards. The PMRA was once re-evaluated tebufenozide in 2017 in terms of its safety. On 16 November 2017, the U.S. Environmental Protection Agency also assessed the risk of tebufenozide, toxicity, carcinogenicity, and its effect on human infants.

Tebufenozide has high insecticidal activity, high selectivity for the targeted pests and low toxicity. It is primarily used against Lepidopteron, such as bollworm, cabbage caterpillar, diamondback moth as well as beet armyworm. The ovicidal activity of tebufenozide is extremely high and it can be used safely without harming non-target organisms. It does not do harm to human’s eyes or skin, nor does it cause malformation, cancer or mutagenesis in animals with high intelligence. It is also safe with mammal species, birds, and natural predators.

An overview of pesticides that contains tebufenozide in China

By the end of March in 2019, some companies in China have updated the price of tebufenozide. The pesticide product from Shandong Libang Chemical Co., Ltd is RMB880 with each pack of 40 bottles. Each bottle weighs 100g. It includes 20% of tebufenozide, combining with emulsifier and softened water. It is a pesticide of acylurea and low toxicity. The function of this pesticide causes premature molting in larvae.

The pesticide from Jinan Tianbang Chemical Co., Ltd contains 20% of tebufenozide. The price of it is RMB 700 for 360 bottles with 36ml each bottle. This product will also cause premature molting in larvae. After applying the pesticide, larvae will cease eating and the new cuticle will come earlier and become deformity under the old cuticle so that the old cuticle are unable to be molted, causing the larvae to die from dehydration. This pesticide is good to control the reproduction of insects.

The pesticide from Shandong Qingdao Runsheng Agrochemical Co., Ltd contains 10% of tebufenozide and 0.5% of emulsifiable concentrate. It is RMB 215 with 20 bottles and each bottle contains 300ml. It aims to kill the motor nerve of larvae so that they can be killed from physical paralysis. It is a cure for beet armyworms.

The product from Hebei Shenhua Pharmaceutical Co., Ltd contains 200g of tebufenozide each litre. It is RMB1055 with a total of 300 bottle, and each weighs 30g. Larvae will be molting and cease eating after 6 to 8 hours of its application.

For more information about China's pesticide market, please have a look at our monthly newsletter Insecticides China News.

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