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His approach to removing aphids, for instance, is to bring out a small paint brush as soon as they’re spotted, to literally sweep them off the plants.

Some insects, including aphids and cicadas, feed on phloem – the living tissue inside plants that carries food made in the leaves to other parts of the plant – and may also benefit from carbon-rich plants.

Neonicotinoids were banned in 2018 but sugar beet farmers have been given special permission to use them every year for the past four years to fight virus yellows, a disease spread by aphids.

They are currently used by sugar beet farmers to protect their crops from virus yellows, a disease spread by aphids.

Downtown's Pershing Square supports mourning doves, Vaux's swifts, gopher snakes and exotic streaktails, a type of fly that feeds on aphids.