Seven Of Our Nine Pine Trees Are Getting Yellow? We Live In The Northeast And Had Two Severe Heat Waves. Is This The Cause?

Question

have two heatwaves, what is happening to our tre es and can we save them?

Answer 1

Unfortunately, your photos did not come through.

They can usually withstand a heatwave in your zone, depending on the type. You don't specify which it is, so I am unsure if it is a heat sensitive cultivar. Regardless, most are very well suited to your area.

If you were providing supplemental watering during this time, and the soil did not have a period to dry out thoroughly down to about 3 inches between watering, then overwatering can definitely cause these symptoms.

Too rich of a soil, not enough nutrients, and disease are all possible, as well.

Here are some articles that will help you to narrow down some of those possibilities:

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm

https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

https://www.gardeningknowhow.com/ornamental/trees/pine