Diversity of Arthropods and Population Dynamics of Dominant Pests on Polygonatum kiugiauum under Photovoltaic Panels
To clarify the structure and diversity of the arthropod community on Polygonatum kiugiauum planted under photovoltaic panels,and provide technical support for the integrated pest management on P.kiugiauum under photovoltaic panels and the development of photovoltaic agriculture,a systematic investigation on the species was conducted using the visual survey and blue sticky card trapping in P.kiugiauum planting areas under photovoltaic panels and open-field planting in 2023,the community diversity of arthropods was evaluated using the community diversity index and population dynamics of major pests was analyzed.The results showed that there were 27 species of arthropods belonged to 27 genera,25 families,10 orders and 2 classes on P.kiugiauum under the photovoltaic panels.Additionally,there were 30 species of arthropods in 30 genera,28 families,10 orders and 2 classes under open-field planting of P.kiugiauum.During the whole investigation period,the diversity index and evenness index of arthropod community on P.kiugiauum planted under photovoltaic panels were higher than those planted in the open-field and followed a dynamics of decrease-increase,and the dominance index followed an increase-decrease dynamics.The richness index of arthropod community on P.kiugiauum under photovoltaic planting followed a dynamics of increase-decrease-increase,while open-field planting followed a dynamics of increase-decrease-constancy.The similarity of arthropod communities on P.kiugiauum was high with a value of 0.84 under the two planting modes.The dominant species of arthropods was Tetranychus kanzawai,whose population showed a single-peak pattern.However,the population under the photovoltaic panels was significantly lower than that in open-field planting,with a peak of 6.77 in May under the photovoltaic panels,and a peak of 14.75 in July under open-field planting,respectively.In conclusion,the diversity of arthropod communities on P.kiugiauum planted under photovoltaic panels was higher than that under open-field planting,and it was favourable for the control of the dominant pest T.kanzawai.