How Sap Moves in Trees It is lifted up to the leaves and flows down with the products of photosynthesis. It can now be delicately sampled by tapping the tiny stylets that a feeding aphid pushes ...
If you're the type who often plants trees and forgets about them (we know ourselves), then it's going to be hard to keep up with pests, especially the tiny ones like scales. Scales are sap-sucking ...
Bird droppings are acidic and can eat into your car's paint if left unattended. Similarly, tree sap hardens over time, making it difficult to remove without scratching the surface. Both can lead to ...