Ask a Question
Notify Me On Question Update
Email this Question
I have a Bartlett pear tree that has black spots on the leaves and holes chewed on some leaves and a few curled up leaves. Could you tell me what to spray for these problems?
Rate This FAQ
Your young peach tree could have suffered some winter dieback, especially if a lot of the branch tips are black. It could also have severe iron chlorosis or peach twig borer. If the latter, there are several chemicals you could use including Dipel, Sevin, Ortho Bug-B-Gone, Malathion, Concern Multi-Purpose, Ferti-Lome, Green Light, Natural Guard, or GF-120. A dormant oil spray with insecticide applied when the flower buds are swollen, but not opened is beneficial. The insecticide alone (no dormant oil added) should be applied between June 21 and 26th.
You also mentioned that the leaves are yellowing and turning brown. If the veins are a darker green color, you probably have iron chlorosis. Severe Iron chlorosis will cause the tree to die, starting at the ends of the branches. To correct this, you should watch your watering. In our alkaline clay soils, the water ties up the iron. You should also add chelated iron in the spring at leaf bud swell. By the time all the leaves are full size, adding the iron doesn't do much good.
If you brought in a sample of your branch, we could tell whether it is iron chlorosis, winter damage or twig borer. It does cost $1. and our office is open Mon-Fri 8-5. For further information, you can call us at 851-8462
Submit Your Suggestion
Other Questions In This Topic
- Can you tell me how to get rid of the Star of Israel that is in your lawn?
- I have a pine tree that is dying. It has two or three branches that are dead or dying. Is there any treatment that I can use to stop this?
- This year we planted our first home garden. It was a lot of fun, but we need to know what to do to make it better next year. Specifically: our plants grew VERY large, but did not yield much fruit. What fruit we did get was typically small and misshapen. We did not fertilize, except some nitrogen along with dead lawn clippings last fall. What should we do this fall to get the soils ready for more fruit and less leaves next year?
- I have Morning glory though out my established lawn, how can I get rid of it?
- What kind of Strawberry plant do you recommend? I remember Crocket's Victory Garden recommending an ever bearing one for the New England area.
- My zucchini plant has white spots in the leaves of the plant. New leaves are green but mature with the white spots. There is no powder residue or other obvious sign of fungus. No other plant in the garden has this appearance. What is the problem?
- I am trying to find an organic solution to spraying weeds in the vegetable garden, such as morning glory. Would a mix of vinegar and lemon juice spread to the roots of the vegetables also, or could it be used? If so, do you have any information on proportions for the mix?
- The leaves on our maple tree get little spikes on the top of it and then dry up and fall off. Can you tell me the problem and how we may solve it?