Castro E B, Nuvoloni F M, Mattos C R R, Feres R J F
Depto Zoologia e Botânica, IBILCE/UNESP, São José do Rio Preto, SP, Brasil.
Neotrop Entomol. 2013 Feb;42(1):95-101. doi: 10.1007/s13744-012-0088-y. Epub 2012 Nov 1.
Our aim was to investigate the population fluctuation and the damage caused by the phytophagous mites Calacarus heveae Feres, Tenuipalpus heveae Baker, and Eutetranychus banksi (McGregor) on clones FX 2784, FX 3864, and MDF 180 in rubber tree crops from southeastern Bahia, Brazil. Moreover, we tested for the influence of climatic variables on occurrence patterns of these species throughout weekly samples performed from October to April. The infestation peaks was between mid-January and late February. The clones FX 2784 and FX 3864 had the highest infestations and more severe damage possibly caused by C. heveae, which was the most frequent and abundant species in all clones. We found that sunlight duration and rainfall were the most important factors for C. heveae while T. heveae was affected by rainfall and temperature. Eutetranychus banksi was only affected by sunlight duration. However, the best models had low goodness of fit. We concluded that the clones FX 2784 and FX 3864 had a higher susceptibility to mite attack, and the association between climatic variables and favorable physiological conditions were determinant for the population increase of the species from January to April.
我们的目的是调查植食性螨类——橡胶害螨（Calacarus heveae Feres）、橡胶细须螨（Tenuipalpus heveae Baker）和橡胶尤氏叶螨（Eutetranychus banksi (McGregor)）对巴西巴伊亚州东南部橡胶树作物中FX 2784、FX 3864和MDF 180品系的种群波动及造成的损害。此外，我们通过对10月至4月期间每周采集的样本进行检测，来研究气候变量对这些螨类发生模式的影响。虫害高峰期在1月中旬至2月下旬之间。FX 2784和FX 3864品系的虫害最为严重，可能是由橡胶害螨造成的，该螨类在所有品系中最为常见且数量最多。我们发现，日照时长和降雨量是影响橡胶害螨的最重要因素，而橡胶细须螨受降雨量和温度的影响。橡胶尤氏叶螨仅受日照时长的影响。然而，最佳模型的拟合优度较低。我们得出结论，FX 2784和FX 3864品系对螨害的易感性较高，1月至4月期间，气候变量与有利的生理条件之间的关联是这些螨类种群增长的决定性因素。
