Accidental poisoning with caterpillars has become increasingly frequent in southern Brazil, partly due to deforestation and elimination of natural predators [1]. Caterpillars are the larval stage of moths and butterflies and are found worldwide [2]. Accidental contact with caterpillar’s bristles induces allergic and toxic signs and symptoms that range from mild cutaneous reaction to severe syst...

It has been shown previously that the laticifer fluid of Calotropis procera (Ait.) R.Br. is highly toxic to the egg hatching and larval development of Aedes aegypti L. In the present study, the larvicidal potential of other laticifer fluids obtained from Cryptostegia grandiflora R.Br., Plumeria rubra L. and Euphorbia tirucalli L. was evaluated. We attempted to correlate larvicidal activity with...