Toxicity of newly isolated piperideine alkaloids from the red imported fire ant, Solenopsis invicta Buren, against the green peach aphid, Myzus persicae (Sulzer)

Abstract

The green peach aphid, Myzus persicae (Sulzer), is a major insect pest of many agronomic and horticultural crops and is distributed worldwide. Aphid management is often based on application of insecticides. However, the aphid is now resistant to many of these and much interest has recently developed in identification of novel alternative insecticides. Venom isolated from the red imported fire ant, Solenopsis invicta Buren, is composed of two groups of alkaloids, piperidines and piperideines, and has shown activity against many organisms including fungi, bacteria, mites and several insects. Prior to the study reported herein, no information on the venom's activity to Myzus persicae has been reported. Both of the alkaloids were active against M. persicae. The 24 h LC 50 values were116.6 and 91.5 ppm for the piperideine and piperidine extracts, respectively. Based on overlap of the 95% fiducial limits the LC 50 values for the two alkaloids did not significantly differ. At the high dosages, mortality occurred in as few as four hours and all treated aphids were dead by six hours. Little additional mortality was detected in the 48-h observation. Both piperideine and piperidine extracts isolated from red imported fire ant venom possess sufficient activity to cause death of green peach aphids and at high dosages, death occurs rapidly. In the search for new replacements to synthetic insecticides, these extracts may offer a novel but potentially successful alternative.

Spinasterol, 22,23-Dihydrospinasterol and Fernenol from Citrullus Colocynthis L. with Aphicidal Activity against Cabbage Aphid Brevicoryne Brassicae L.

“…Continued feeding of this pest caused yellowing, wilting and stunting of plant growth, ultimately cause plant death and lead to economic losses [6]. Moreover, most of the species of aphid have gained resistance against many synthetic aphicidal agents [7].…”

Phytochemical Screening, Total Phenolic and Flavonoids Contents and Antioxidant Activities of Citrullus Colocynthis L. And Cannabis Sativa L.

“…Cannabis leaves have great potential against pests (McPartland, 1997) and these insecticidal properties of plants can be found in their secondary metabolites. For example, crude extract from Chenopodium ficifolium and Jatropha curcas exhibits aphicidal activity, and alkaloids from Corydalis turtschaninovii tubers and Macleaya cordata seeds harbour insecticidal potential (Abdoul Habou et al, 2011;Le Dang et al, 2010;Park et al, 2011;Rashid et al, 2013). The essential oil of Cannabis has demonstrated antimicrobial activity (Nissen et al, 2010;Novak et al, 2001) while, essential oil from Nepalese origin of C. sativa was evaluated for cytotoxic, larvicidal and insecticidal activity, and was found as relatively non-toxic (Satyal and Setzer, 2014).…”

Whole Body Solvent Soak Gives Representative Venom Alkaloid Profile fromSolenopsis invicta(Hymenoptera: Formicidae) Workers

“…Chen et al ( , 2010a reported the use of a silica gel column chromatography technique to purify D 1,6 -piperideines. A flash chromatography system with a silica gel cartridge was further developed to isolate and purify the piperidine and piperideine alkaloids (Li et al 2012;Rashid et al 2013).…”