Use of Silicon as Resistance Factor for Plants Against Insect Pests

Currently, extensive monoculture cropping combined with a need for more productivity has resulted in the increased use of phytosanitary products – mainly synthetic insecticides to manage insect pests. However, these substances should be used in a sustainable manner to manage agricultural pests. Silicon is a versatile compound, as it can be used in both organic and conventional farming, it has been explored to manage chewing and sucking insects, and mites. Silicon in plants acts as a resistance inducer, increases protection against biotic stress, and decreases the injuries and/or damages caused by pests. The effects of silicon can be observed in alterations to the biology (antibiosis) of chewing and sucking insects, without causing deleterious effects to the natural enemies. Over the years, several advances have been made in relation to silicon. Reports have proved its effectiveness against insects belonging to other feeding categories in laboratory, greenhouse, and field trials. However, there are gaps, such as target organisms and dosage, period, and mode of application, which are yet to be filled. The main reason for the relatively low use of silicon in the management of insect pests is the lack of availability and transfer of technology to the farmers.