The insecticidal potential of Foeniculum vulgareMill., Pimpinella anisum L. and Caryophillus aromaticus L. to control aphid on kale plants

Abstract

ABSTRACT:The use of natural substances for pest control in agriculture is, economically, a viable option and has benefits for both the humanbeing and the environment, due to its low persistence and toxicity. Thus, this trial aimed on determining the insecticidal potential of the extracts and essential oils of fennel (Foeniculum vulgare Mill.), anise (Pimpinella anisum L.) and clove (Caryophillus aromaticus L.) to control Brevicoryne brassicae L. in kale (Brassica oleracea var. acephala DC.). The treatments were: fennel, anise, cloves extracts at 10%; fennel, anise, cloves oils at 1% and control with distilled water. The mortality tests were carried out with aphids in laboratory, with three replications, after 1, 12, 24, 48 and 72 hours. During laboratory trials , it was found out that fennel oil at 1% showed the best rate of mortality on aphid nymphs (70% at 72 h), followed by clove extract at 10% with 37% mortality. Tests in pots were only carried out only with cloves extracts at 10% and fennel oil at 1% treatment, in which such efficiency was alsoindicated on aphid nymphs.Keywords: botanic insecticides, repellency, essential oils.RESUMO: Potencial inseticida de Foeniculum vulgare Mill., Pimpinella anisum L. e Caryophillus aromaticus L. no controle de pulgão em couve. O uso de produtos naturais para controle de pragas da agricultura é opção economicamente viável e traz benefícios tanto ao homem como ao ambiente devido à sua baixa persistência e toxicidade. Dessa forma, o objetivo deste trabalho foi verificar o potencial inseticida de extratos e óleos essenciais de funcho (Foeniculum vulgare Mill.), erva doce (Pimpinella anisum L.) e cravo-da-índia (Caryophillus aromaticus L.) para o controle de pulgão (Brevicoryne brassicae L.) em couve (Brassica oleracea var. acephala DC.). Os tratamentos utilizados foram os extratos de funcho, erva-doce e cravoda-índia a 10%; óleos de funcho, erva-doce, cravo-da-índia a 1% e testemunha com água destilada. Testes de mortalidade sobre pulgão em condições de laboratório foram realizados com três repetições e avaliações após 1, 12, 24, 48 e 72 h. Em laboratório, verificou-se que o óleo de funcho a 1% apresentou maior atividade sobre as ninfas de pulgão (70% em 72 h), seguido do extrato de cravo a 10%, com 37% de mortalidade. Testes em vasos foram realizados somente com o extrato de cravo-da-índia a 10% e óleo de funcho a 1%, nos quais também se constatou a eficácia sobre as ninfas de pulgão.Palavras-chave: inseticidas botânicos, repelência, óleos essenciais.

Cabbage Production in West Africa and IPM with a Focus on Plant-Based Extracts and a Complementary Worldwide Vision

“…In the rest of the world, 139 plant species representing 44 families [ 149 , 153 , 154 , 156 , 166 , 169 , 170 , 171 , 172 , 173 , 174 , 175 , 176 , 177 , 178 , 179 , 180 , 181 , 182 , 183 , 184 , 185 , 186 , 187 , 188 , 189 , 190 , 191 , 192 , 193 , 194 , 195 , 196 , 197 , 198 , 199 , 200 , 201 , 202 , 203 , 204 , 205 , 206 , 207 , 208 , 209 , 210 , 211 , 212 , 213 , 214 , 215 , 216 ,…”

Analgesic-Like Activity of Essential Oil Constituents: An Update

“…Anethole (ANT), or trans -anethole, is an organic compound frequently used as flavoring substance. It belongs to the family of phenylpropanoids (C 6 –C 3 ), a class of aromatic compounds that occurs widely in essential oils [ 204 , 205 ]. ANT is the main constituent of many essential oils [ 206 ], such as Illicium verum [ 207 ] and Pimpinella anisum [ 208 ], and seems to play a key role in the biological effects attributed to these oils.…”

Acaricidal activity of Foeniculum vulgare against Rhipicephalus annulatus is mainly dependent on its constituent from trans-anethone

“…Tetranychus urticae , Dermatophagoides farinae and Dermatophagoides pteronyssinus [ 13 , 14 ]. Also, fennel found to have insecticidal activity against the sheep ked Melophagus ovinus [ 15 ] and the aphid nymphs [ 17 ]. Fennel EO was also proven to be highly toxic to two important insect pests of the stored product ( Sitophilus oryzae and Callosobruchus Chinensis ) [ 40 ].…”

“…Also, it was found to have insecticidal activity against Melophagus ovinus sheep ked [ 15 ], and larvicidal activity against Culex pipiens mosquito [ 16 ]. Moreover, Lucca et al [ 17 ] reported 70% mortality rate in aphid nymphs treated with 1% fennel oil.…”