Nava Dori E, Gomez-Torres Mariuxi L, Rodrigues Marjorie D, Bento José M S, Haddad Marinéia L, Parra José R P
Laboratório de Entomologia, Embrapa Clima Temperado, 96001-970 Pelotas, Rio Grande do Sul, Brazil.
Environ Entomol. 2010 Apr;39(2):678-84. doi: 10.1603/EN09252.
Diaphorina citri Kuwayama (Hemiptera: Psyllidae) is the vector of the bacteria that causes citrus greening and is considered one of the world's most important citrus diseases. We examined how host, geographic region, and gender affect the thermal requirements of D. citri. The insects were reared in climatic chambers at constant temperatures of 18, 20, 22, 25, 28, 30, and 32 +/- 1 degrees C, 70 +/- 10% RH, and a 14 h photophase. Host plants for D. citri included orange (Citrus sinensis [Rutaceae]) varieties Pêra and Natal, the rootstock, Rungpur lime (C. limonia [Rutaceae]) and the natural host, Orange jessamine (Murraya paniculata [Rutaceae]). To study the influence of geographic origin on thermal requirements, we studied D. citri populations from Piracicaba, SP (warmer region) and Itapetininga, SP (cooler region). The duration and survival of the development stages and the duration of the total development (egg-adult) did not differ significantly on the different hosts, but it did vary with temperature. Nymphs of D. citri created on the different hosts have the same thermal requirements. The thermal requirements for this species collected from the two climate regions were identical; males and females also had the same thermal requirements.
柑橘木虱（半翅目：木虱科）是导致柑橘黄龙病的细菌的传播媒介，柑橘黄龙病被认为是世界上最重要的柑橘病害之一。我们研究了寄主、地理区域和性别如何影响柑橘木虱的热需求。将昆虫饲养在气候箱中，温度恒定在18、20、22、25、28、30和32±1摄氏度，相对湿度70±10%，光周期为14小时。柑橘木虱的寄主植物包括橙子（芸香科柑橘属）品种佩拉和纳塔尔、砧木伦布尔酸橙（芸香科酸橙属）以及天然寄主九里香（芸香科九里香属）。为了研究地理起源对热需求的影响，我们研究了来自圣保罗州皮拉西卡巴（较温暖地区）和圣保罗州伊塔佩廷加（较凉爽地区）的柑橘木虱种群。发育阶段的持续时间和存活率以及总发育（卵-成虫）的持续时间在不同寄主上没有显著差异，但随温度而变化。在不同寄主上产生的柑橘木虱若虫具有相同的热需求。从两个气候区域采集的该物种的热需求相同；雄性和雌性也具有相同的热需求。
