02514naa a2200265 a 450000100080000000500110000800800410001910000210006024501320008126000090021352017360022265000240195865000270198265000090200965000210201865300280203965300210206765300270208865300170211570000180213270000240215070000160217470000150219077300430220521097952019-12-09 2019 bl uuuu u00u1 u #d1 aCASTILHOS, R. V. aEffect of toxic baits used for fruit fly control against Trichogramma pretiosum and Chrysoperla externa.h[electronic resource] c2019 aToxic baits are an important tool in fruit flies management; however, some beneficial insects such as natural enemies can be impaired by this technique. In this study, the toxicity of some se-lected baits on Trichogramma pretiosum and Chrys-operla externa, which are important as biological con-trol agents of fruit pests, was evaluated. Materials and methods ? Bioassays were conducted under labora-tory conditions (temperature of 25±2 °C, relative hu-midity 70±10% and 14 h day length) and consisted on the exposure of adults to a fine film of bait (drops with ~ 4 mm of diameter). Based on either, reduction of the parasitism capacity for T. pretiosum or mortal-ity for C. externa, thebaits were grouped in the IOBC toxicity categories. Results and discussion ? The mal-athion-basedbaits composed by the attractants sug-arcane molasses (7%), Biofruit® (5%) and ANAMED®are harmful to both species based on reduction of >96% in the parasitism capacity of T. pretiosum and 100% mortality for C. externa. Toxic baits composed by the aforementioned attractants with the insecti-cide spinosad added, and the commercial bait Suc-cess® 0.02 CBare harmful to T. pretiosum, with reduc-tions on parasitism capacity higher than 87%. How-ever, these baits are relatively selective to C. externa adults, with mortality ranging from 23 to 60%. Con-clusion ? Based on the obtained results, toxic baits with spinosad are more selective to predators and considered a more ecofriendly option for integrated fruit flies management.KeywordsBrazil, fruit flies management, biological pest control, food attractants aChrysoperla externa aTrichogramma pretiosum aIsca aMosca das Frutas aBiological pest control aFood attractants aFruit flies management aIsca tóxica1 aPASINI, R. A.1 aGRÜTZMACHER, A. D.1 aNAVA, D. E.1 aBOTTON, M. tFruitsgv. 74, n. 3, p. 110-116, 2019.