[Thermal requirements and estimate of the annual number of generations of Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) on strawberry crop].
[Thermal requirements and estimate of the annual number of generations of Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) on strawberry crop].
复制标题
草莓作物上Frankliniella occidentalis (Pergande)（缨翅目：蓟马科）的热量需求和年代数估算]。
DOI：
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发表时间：
2008
影响因子：
1.8
通讯作者：
Rogério Gitz
中科院分区：
文献类型：
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作者：
A. Nondillo;L. Redaelli;M. Botton;S. M. J. Pinent;Rogério Gitz
西花蓟马（Frankliniella ococcuentalis（Pergande））是巴西南部草莓的主要害虫之一。这种昆虫导致花和果实的赤褐色和枯萎，降低了商业价值。本研究测定了该虫卵、幼虫和蛹的热需求。估计的Occupentalis。在六个恒定温度（16、19、22、25、28和31 ℃）下，在受控条件（70 +/-10%R.H.）下，研究了草莓植物的叶中的蓟马发育。12：12 L：D）。该虫的年世代数为100代。根据其热量要求，估计了南里奥格兰德州六个草莓生产区的西花蝇。各F.越冬期与温度升高成正比。在25 ℃和28 ℃条件下饲养，发育率最高。卵至成虫期的下限温度为9.9 ℃，需热量为211.9度日。考虑到F.在巴西南里奥格兰德州的瓦卡里亚、南卡希亚斯、法鲁皮利亚、佩尔松、波尔图、阿莱格雷和塔夸里产区，估计ocquentalis的发生率分别为10.7、12.6、13.1、13.6、16.5和17.9代/年。
Frankliniella occidentalis (Pergande) is one of the major strawberry pests in southern Brazil. The insect causes russeting and wither in flowers and fruits reducing commercial value. In this work, the thermal requirements of the eggs, larvae and pupae of F. occidentalis were estimated. Thrips development was studied in folioles of strawberry plants at six constant temperatures (16, 19, 22, 25, 28 and 31 degrees C) in controlled conditions (70 +/- 10% R.H. and 12:12 L:D). The number of annual generations of F. occidentalis was estimated for six strawberry production regions of Rio Grande do Sul State based on its thermal requirements. Developmental time of each F. occidentalis stages was proportional to the temperature increase. The best development rate was obtained when insects were reared at 25 masculineC and 28 masculineC. The lower threshold and the thermal requirements for the egg to adult stage were 9.9 masculineC and 211.9 degree-days, respectively. Considering the thermal requirements of F. occidentalis, 10.7, 12.6, 13.1, 13.6, 16.5 and 17.9 generations/year were estimated, respectively, for Vacaria, Caxias do Sul, Farroupilha, Pelotas, Porto Alegre and Taquari producing regions located in Rio Grande do Sul State, Brazil.