![]() aegyptiaca while maintaining safe to the environment. The combinations of Ro, cineole, (+)-camphor with matrine have good insecticidal effects on I. ![]() Ro and its main chemical constituents, cineole and (+)-camphor showed synergistic effects on matrine, and the synergic ratios of these three substances with matrine were 4.79, 3.49 and 4.21, respectively. aegyptiaca and enter the insect body, which improves the insecticidal activity and enhance the inhibitory effect on AChE activity. Ro and matrine combinations have strong penetrating power, so that matrine can quickly penetrate the wax shell of I. In this study, we tested the insecticidal activity of rosehip oil (Ro) and matrine combinations, and revealed the synergistic mechanism of Ro and its components with matrine from the aspects of physiology and biochemistry. Matrine is a botanical insecticide with contact and stomach toxicity, low toxicity to non-target organisms and environmentally friendly. Plant essential oils (PEOs) are rich in terpenoids and have strong penetrating ability and expansibility, which can enable rapid penetration and absorption of insecticides, thereby improving the control effect. Insecticides generally fail to achieve the desired control effect due to the difficulty in penetrating the wax shell. Icerya aegyptiaca (Douglas) is an important agricultural pest with a protective wax shell. ![]()
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