Aphids often appear in swarms around May and June but what risk do they pose to plants?
The beetle and the fungus have devastated trees in California in the US as well as in Israel. Now they're in South Africa.
Agricultural pests are one of the key factors affecting small holder farmer production. Focus is normally put on invertebrate pests, but rodents can do severe damage to crops as well.
A combination of armyworms native to Africa and those normally found in the Americas are ravaging crops in sub-Saharan Africa.