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Lettuce crops can be attacked by several fungal and Oomycete diseases, the principal ones being downy mildew, grey mould and sclerotinia. Other diseases can be very damaging in certain cropping situations, either regularly or occasionally, such as ring spot, powdery mildew and pythium root rot.
- How do you treat lettuce plants?
- What are the diseases of lettuce?
- How do I control aphids on my lettuce?
- What are the white spots on my lettuce?
- How often should Lettuce be watered?
- Why is my lettuce growing tall?
- Does lettuce need full sun?
- Can you eat lettuce with bug holes?
- What is eating my lettuce at night?
- How do you protect lettuce?
How do you treat lettuce plants?
How to Care for Lettuce
- Fertilize 3 weeks after transplanting. ...
- Make sure the soil remains moist but not overly wet. ...
- Lettuce will tell you when it needs water. ...
- An organic mulch will help conserve moisture, suppress weeds, and keep soil temperatures cool throughout the warmer months.
What are the diseases of lettuce?
Diseases of lettuce crops
- Downy mildew.
- Fusarium wilt.
- Grey mould.
- Phoma leaf spot and basal rot.
- Powdery mildew.
- Pythium diseases.
- Rhizoctonia bottom rot.
- Ring spot.
How do I control aphids on my lettuce?
You can often get rid of aphids by wiping or spraying the leaves of the plant with a mild solution of water and a few drops of dish soap. Soapy water should be reapplied every 2-3 days for 2 weeks.
What are the white spots on my lettuce?
Fungal Reasons for Lettuce That has White Spots
Downy mildew thrives in infected crop residue. ... Another fungal disease, white rust may commonly affect not only lettuce but mizuna, Chinese cabbage, radish, and mustard leaves. Initial symptoms are white spots or pustules on the underside of the leaves.
How often should Lettuce be watered?
Water your lettuce plants every day—and even more often if it is extremely hot and dry. The lettuce leaves are mostly water and will desiccate and wilt in strong sunlight and dry soil. Lettuce roots tend to be shallow, so frequent watering is more important than deep watering.
Why is my lettuce growing tall?
Most lettuce varieties are cool season crops. When the hot weather comes, they send up tall stalks that will flower and set seed. You'll notice that the leaves begin to taste bitter around the same time the stalks elongate. This is called bolting.
Does lettuce need full sun?
Although lettuce grows fastest in full sun, it is one of the few vegetables that tolerates some shade. In fact, a spring crop often lasts longer if shaded from the afternoon sun as the season warms. ... Give lettuce fertile, well-drained, moist soil with plenty of rich organic matter and a pH between 6.0 and 7.0.
Can you eat lettuce with bug holes?
Insect damage, healed cuts, small holes or scars: For the most part, insect damage does not render fruits and vegetables inedible. If slugs take a little chew out of your lettuce or a weevil leaves a small hole in your pepper, cut away the damage and thoroughly inspect what is left.
What is eating my lettuce at night?
Slugs and snails love lettuce, but they nibble from the outside edges toward the center. A leaf with a center rib intact and a scalloped edge has been visited by a slug during the night. Only if seedlings have just sprouted will slugs eat the whole plant. ... In spring there might be flea beetles eating lettuce.
How do you protect lettuce?
Mulch the area around your lettuces to seal moisture into the soil and feed your plants. Early- and late-season sowings are less inclined to bolt. Keep the area around the plants weed-free and protect young plants from slugs and snails.
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