Q: We have lost a tremendous section of our garden. In researching, it appears fire blight disease is the problem. Our red-tip photinia was the first and, in a very short time, it looked as if someone had taken a flame thrower to the plants. Euonymus hedges, flowering pink hawthorn and some rose bushes are starting to show the same problem.
Downtown
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Hot weather favors lawn diseases common here. Now is an optimum time for controlling lawn diseases before they in get into full swing. If your lawn had disease in the past, now is a good time to apply a fungicide. Fungicides are primarily preventive and work best when they are applied before the disease rears its ugly head.
Historically, the last frost date is March 15 in the Las Vegas Valley. Planting warm-season vegetables before this date, such as tomatoes, peppers and eggplant, can be a bit risky because of a chance for frost.
You had an article a while back about trimming oleander down before spring. I have five in my backyard and have never done that. I am afraid to trim them down.
Powdery mildew of grapes is also a problem if there is not enough air movement through the vine or past the bunches so they dry. It is best if the vine is growing in full sun.
When can we cut back star Jasmine and plant lantana?
I was reading about your use of pheromone traps for insect control in fruit trees. Which traps do you use, and when do you put them out?
Is there a difference between rosemary used for cooking and rosemary used in landscaping?
I have a major borer problem with my nectarine tree. I will be removing it and replanting. Do I need to treat the soil before I plant another tree?
A friend of mine is having trouble with his century plants, agave and cactuses turning yellow in June and July. These plants are in a rock yard with hand watering. They are 2 years old.
We have a critter attacking our lemons. It does not eat the fruit, only the peel. It eats the peel so cleanly that the bare fruit is left hanging on the tree.