The cabbage aphid,Brevicoryne brassicaeL. (Hem: Aphididae), is one of the most serious pests of canola worldwide. In this research, the effects ofPseudomonas putida, salicylic acid (SA), and integrated application of both inducers were studied on the resistance of canola toB. brassicae. In free-choice situation, the number ofB. brassicaeattracted on canola plants under treatments containingP. putidaand SA was significantly lower compared to control plants. In the life table study, pre-adult survival, longevity, reproductive period, and fecundity of this aphid were lowest on plants treated withP. putida+ SA. The net reproductive rate (R0), intrinsic rate of population increase (r), and finite rate of increase (λ) ofB. brassicaedecreased significantly in the following order: control (47.19 offspring, 0.293 and 1.340 day−1),P. putida(16.7 offspring, 0.238 and 1.269 day−1), SA (6.37 offspring, 0.163 and 1.178 day−1), andP. putida+ SA (3.24 offspring, 0.112 and 1.119 day−1). Moreover, the beneficial effect of the integrated application ofP. putidaand SA on plant growth parameters was significantly evident in our study. The highest values of glucosinolates, total phenol, and flavonoids were recorded inP. putida+ SA treatment. We concluded that canola plants treated withP. putida+ SA are more resistant to the cabbage aphid. These findings demonstrated that SA integrated withP. putidaon canola plants act effectively for reducing the population ofB. brassicaeand can be used in integrated management programs of this pest.

中文翻译：

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油菜中恶臭假单胞菌和水杨酸诱导对芸苔的抗性

白菜蚜虫，芸苔属植物L. (Hem: Aphididae)，是世界上最严重的油菜害虫之一。在这项研究中，影响恶臭假单胞菌, 水杨酸 (SA) 和两种诱导剂的综合应用对油菜的抗性进行了研究。B.芸苔. 在自由选择的情况下，B.芸苔被处理下的油菜植物所吸引恶臭假单胞菌与对照植物相比，SA 显着降低。在生命表研究中，这种蚜虫的成虫前存活率、寿命、繁殖期和繁殖力在经过处理的植物中最低。恶臭假单胞菌+ 南非。净繁殖率 (R0), 人口的内在增长率 (r) 和有限的增长率 (λ） 的B.芸苔按以下顺序显着下降：对照（47.19 个后代，0.293 和 1.340 天）-1),恶臭假单胞菌（16.7 个后代，0.238 和 1.269 天-1), SA (6.37 后代, 0.163 和 1.178 天-1）， 和恶臭假单胞菌+ SA（3.24 个后代，0.112 和 1.119 天-1）。此外，综合应用的有益效果恶臭假单胞菌和 SA 对植物生长参数的影响在我们的研究中非常明显。硫代葡萄糖苷、总酚和类黄酮的最高值记录在恶臭假单胞菌+ SA 处理。我们得出结论，用恶臭假单胞菌+ SA 对白菜蚜虫的抵抗力更强。这些发现表明，SA 与恶臭假单胞菌对油菜植物有效地减少B.芸苔并可用于该害虫的综合管理计划。