Yes, it will, trees seem to be unfriendly beings to solar panels and the presence of trees always causes all sorts of trouble for solar panels.

What kind of effect trees have on solar panels?
(1) Damage to solar panels, trees are one of the causes of damage to solar panels, some people in the United States like to live in the forest life or house next to the always planted some trees, however, trees occur in the large branches and leaves fall on the solar panels of the glass panels may cause breakage and damage to the solar panels.
(2) Shade, for solar panels for the shadow of the great impact of shade, when solar panels installed in the shade of the solar panels and can not receive too much sunlight, which will greatly reduce the efficiency of the solar panels to generate electricity, must be discharged from the shadow of the shade.
How to prevent trees from affecting my solar panel?
(1) Trimming trees, before installing solar panels you should consider whether the trees will have an impact on the solar panels power generation, if there is just a simple shade you can simply ensure that the solar panels power generation by trimming the way.
(2) Regular cleaning, in the process of tree replacement will produce fallen leaves and branches accumulate in the solar panels, to ensure the quality of power generation of the solar panels, you must regularly clean the surface of the solar panels of various debris.
(3) Installation location, in the presence of trees around the home, the installer should consider the possible impact, according to the growth of trees can be set to install the location to avoid tree impact.
(4) choose polycrystalline silicon solar panels, if you really can not avoid the impact of tree shading, you can have less impact on the shadow of polycrystalline silicon solar panels, although not as efficient as monocrystalline silicon solar panel, but for dealing with shadows to deal with polycrystalline silicon better.
(5) solar micro inverter, there is a better way to deal with the shadow is to choose micro inverter on each solar panel, for the traditional inverter, the local shadow of the shade will affect the entire solar panel power generation, if you use micro inverter, the local solar panels will only act in the shade of the solar panels to effectively reduce the impact.
(6) the height of the solar panels, if you can choose to raise the location of the solar panels, it has been proved that the solar panels are installed too low by the trees have a greater impact, most of the trees planted next to the house is not too high, appropriate installation of the roof to raise the height of the pressure brought about by the shadow can be effectively mitigated.
4 How long does tree shading take on solar panels?
If you just plant a small number of trees in the yard, then the impact on the solar panels will not be very long, you have to clearly understand that the trees will change the density of branches and leaves with the change of seasons, in the summer the leaves of the trees in the most lush stage will indeed have a small impact on the solar panels, but in other seasons the branches and leaves of the trees are not considered lush, the impact on the solar panels naturally reduces a lot.
Conclusion
While tree shadows do have an impact on solar panels, there are many ways to avoid this game by installing solar panels, and you can pretty much solve your concerns whenever you want to install solar panels.