Chemicals can be applied to trees for insect or disease control through soil application, stem injections or spraying.
2.
Soil application of aldicarb provided limited control of Asian citrus psyllid, while drenches of imidacloprid to young trees were effective for two months or more.
3.
More recent work has been focused on identifying pyrogenic carbon in soil with an emphasis on biochar soil application and studying the impact of biochar on soil properties.
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