Scheunemann Tiago, Manica-Berto Roberta, Nörnberg Sandro Daniel, Gonçalves Rafael da Silva, Grützmacher Anderson Dionei, Nava Dori Edson
Programa de Pós-graduação em Fitossanidade, Universidade Federal de Pelotas, Pelotas, RS, Brazil.
Tríade - Comunicação Científica, Pelotas, RS, Brazil.
J Econ Entomol. 2019 Feb 12;112(1):450-456. doi: 10.1093/jee/toy327.
Palpita forficifera Munroe, 1959 (Lepidoptera: Crambidae) is the main pest of the olive tree (Olea europaea L. Oleaceae) in Brazil. This study investigated the biology of P. forficifera reared on different hosts and elaborated the corresponding fertility life table for a better understanding of its development. Biology of P. forficifera was studied using olive cultivars Arbequina, Arbosana and Koroneiki and the alternative host privet (Ligustrum lucidum Ait., Oleaceae), under controlled conditions of temperature (25 ± 2°C), relative humidity (60 ± 10%), and photophase (14 h). We evaluated duration and viability of egg, larva, and pupa stages; number and duration of instars; sex ratio; pupa weight; duration of preoviposition, oviposition, and postoviposition periods; fecundity and longevity. The fertility life table was elaborated from these parameters. Larvae fed with privet had longer larval stage, and consequently, egg-pupa period. Larva viability was lower in cv. Arbosana, which reflected in lower viability in the egg-pupa period. Larvae fed with cv. Koroneiki originated females with higher fecundity. From the joint assessment of the biological parameters and the fertility life tables, cv. Koroneiki provided the greatest population increase, while cv. Arbosana impaired P. forficifera development. Thus, in areas of high occurrence of this species, cv. Arbosana should be considered as the more indicated cultivar for the establishment of new olive groves.
芒氏绢野螟（Palpita forficifera Munroe，1959）（鳞翅目：草螟科）是巴西橄榄树（油橄榄，木犀科）的主要害虫。本研究调查了在不同寄主上饲养的芒氏绢野螟的生物学特性，并编制了相应的繁殖力生命表，以便更好地了解其发育情况。在温度（25±2°C）、相对湿度（60±10%）和光照期（14小时）的受控条件下，使用油橄榄品种阿贝基纳、阿尔博萨纳和科罗内基以及替代寄主女贞（女贞，木犀科）对芒氏绢野螟的生物学特性进行了研究。我们评估了卵、幼虫和蛹阶段的持续时间和活力；龄期数量和持续时间；性别比；蛹重；产卵前期、产卵期和产卵后期的持续时间；繁殖力和寿命。根据这些参数编制了繁殖力生命表。以女贞为食的幼虫幼虫期较长，因此卵到蛹期也较长。阿尔博萨纳品种的幼虫活力较低，这反映在卵到蛹期的活力较低。以科罗内基品种为食的幼虫产生的雌虫繁殖力较高。通过对生物学参数和繁殖力生命表的综合评估，科罗内基品种的种群增长最大，而阿尔博萨纳品种则不利于芒氏绢野螟的发育。因此，在该物种高发地区，阿尔博萨纳品种应被视为建立新橄榄园的更适宜品种。
