Linden borer larvae are slender, white, worms about 1 inch.

Linden Trees Are Dropping Yellow Leaves. Question From: Chana, Illinois, United States. Q: We have several Linden trees in our yard. We have noticed that all the trees are losing leaves and the leaves that are falling off the tree are yellow.

We had beetle problems last year and treated the areas around the trees, now this year it is yellow leaves. Deb, You need to get your trees check out by a certified. The tree will remove the nutrients from the leaf, leaving the yellow color you see. You may want to consider a spring fertilization next year, suppliment natural rain with watering during August and September when it is typically hot and dry.

You can start the watering yet this season and water the tree well late in the year in November to ensure lots of moisture in the soil for the winter. Well, the tree is getting worse, most if it is yellow now and the leaves are falling off. The nursery thinks it may be signs of too much water, it's been raining here like crazy. The told me to just watch the soil and let it dry out for a while, but not get too dry, they think it will come next year.

The tree is balancing the number of leaves to the available water.

Leaves, Shoots Damaged, Sawdust Visible means Borers. Borers - Adult linden borers are yellowish brown or olive colored beetles. About 3/4 inch long, they have three dark spots on each wing cover. They emerge late in summer and feed on leaves and tender shoots before laying eggs in the stumpchopping.barted Reading Time: 5 mins.