The side effects and the emerging resistance to the available drugs against leishmaniasis and trypanosomiasis led to the urgent need for new therapeutic agents against these diseases. Thirty one extracts of thirteen medicinal plants from the Brazilian Cerrado were therefore evaluated in vitro for their antiprotozoal activity against promastigotes of Leishmania donovani, and amastigotes of Trypa...

Bougainvillea plants, native of Brazil, are cultivated in home gardens South Africa. Vittacus bougainvilleae (Keifer) (Eriophyidae), Brevipalpus californicus s.l. (Banks) and yothersi Baker (Tenuipalpidae) recorded for the first time this country infesting bougainvillea plants. The rust mite, V. bougainvilleae, was detected Western Cape Province during summer season. Infested plants showed symp...

Seventeen new species of Scolytodes Ferrari are described from Venezuela, Ecuador, Peru, Bolivia and Argentina: Scolytodes cenchros, S. concavifrons, S. conpunctus, S. fraterniatratus, S. frontocarinatus, S. solarius and S. trigonus from Cecropia leafstalks; S. pascopomus from a fruit husk; S. obovatus, S. clusiaphilus, S. clusiapraelatus and S. uniseriatus from Clusia litter sifting; S. grosse...