The tree inspector shall inspect all premises and places within the city as often
as practicable to determine whether any nuisance, as described in section 30-177, exists. The tree inspector shall investigate all reported incidents of plant pests
that the council finds may cause significant damage or harm to the city's economy,
environment, or harm to human health. The tree inspector or his duly authorized agents,
may enter upon private premises at any reasonable time for the purpose of carrying
out any of the duties assigned the tree inspector under this article. The tree inspector,
upon finding conditions indicating diseased or infested trees, may send appropriate
samples to the state diagnostic laboratory for diagnosis, as may be recommended by
the state commissioner of agriculture.