White, fluffy insects over trunks and branches.
Cluster of small, soft-bodied insects on buds and growth tips (gray, black, pink, green, red, or yellow in colour)
Wax accumulation is sometimes seen, alog with sweet sticky residue known as 'honey due', or 'sooty mould', a black fungus that resembles soot that will be controlled when aphids are exterminated
Aphid populations are kept low with natural preditors; ladybugs, lacewings, hoverflies, parasitic wasps
Aphids can be spot treated with neem oil, or insecticidal soap (mixing a drop of dish wash liquid with water and spraying on the plant can work too)
Scrub areas within easy reach with a brush and a bucket of soapy water.
Spray infested areas with a firm jet of water to help reduce aphid numbers.