تاثیر مقاومت القایی در گندم بر طول دوره‌های تولیدمثلی شته سبز گندم، Sitobion avenae و کفشدوزک دو نقطه‌ای، Adalia bipunctata

Sitobion avenae (Fabricius) (Hem.: Aphididae) is one of the major pest of cereals in different parts of the world, which plays an important role in the transmission of some plant pathogenic viruses. Induced resistance is one of the alternative methods in modern agriculture for pest management, which directs the defensive aspect of plants by creating physical and chemical barriers in the host plant against insects and natural enemies. Therefore, in this research, the length of the reproductive periods of S. avenae grown on wheat plants treated with Plant Growth-Promoting Rhizobacteria fertilizers (Probio96 and Biofarm) and micronutrients (Alpha-Iron and Librel Zinc) as well as its predator Adalia bipunctata L. (Col.: Coccinellidae) has been investigated. The results showed that the longest oviposition period of aphid was related to control plants (16.75 days), Alpha-Iron (16.71 days) and Librel Zinc (16.37 days) treatments and the shortest one was related to Biofarm treatment (4.06 days). Aphids grown on plants treated with Probio96 (25.64 days) and Biofarm (24.26 days) fertilizers, showed the longest total preovipositional period (TPOP) compared to other treatments. There was a significant difference between the adult preovipositional periods (APOP) means of aphids reared on wheat treated with different fertilizers. Thus, the longest APOP was related to aphids fed on plants treated with Biofarm fertilizer (1 day) and Probio96 (0.68 days) and the shortest period was related to Librel Zinc (0.28 days) treatment. In addition, predatory ladybird fed on aphids reared on wheat plant treated with Probio96 and Biofarm had the longest oviposition period (42.4 and 43.5 days, respectively), the shortest APOP (0.30 and 0.54 days, respectively) and the shortest TPOP (19.31 and 21.7 days, respectively) compared to control and other treatments. The shortness APOP and TPOP are a proper justification for increasing the intrinsic rate of population growth. Therefore, it can concluded that S. avenae grown on wheat plants treated with Probio96 and Biofaram bio-fertilizer carries high nutritional quality for two-spotted ladybird, Adalia bipunctata and it can be stated that Plant Growth-Promoting Rhizobacteria fertilizers (Probio96 and Biofarm) can be a suitable option in integrated management of wheat green aphid.