Does neem oil expire?

If stored in a cool, dry place, neem oil has a shelf life of 1-3 years. When making an insecticidal spray—and mixing it with water and an emulsifier—neem oil will maintain peak effectiveness for just a few hours but remain viable for up to 3-4 days before its chemical compounds fully break down.
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How do I know if my neem oil is bad?

Before spraying an entire plant, test a small area on the plant and wait 24 hours to check to see if the leaf has any damage. If there is no damage, then the plant should not be harmed by the neem oil.
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How fast does neem oil degrade?

It also rapidly breaks down on plant leaves; the half-life is 1 - 2.5 days.
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When should you not use neem oil?

Use neem oil during the morning or evening hours. Avoid using neem oil during the middle of the day, as the combination of neem oil and direct sunlight can burn the plants.
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Is neem oil poisonous to humans?

The ingestion of neem oil is potentially toxic and can cause metabolic acidosis, seizures, kidney failure, encephalopathy and severe brain ischemia in infants and young children. Neem oil should not be consumed alone without any other solutions, particularly by pregnant women, women trying to conceive, or children.
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WARNING......Watch this before using NEEM OIL!!!!



Do you spray neem oil on soil or leaves?

When spraying a plant with neem oil—either as a bug treatment or preventive measure—it's important to coat both the tops and bottoms of leaves since bugs love to hang out on the underside of foliage. You should also lightly coat the stems and soil, just in case any critters have made their way to those areas.
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Can I use expired neem oil for plants?

If your neem oil spray is older than 4 days, don't dump it out. You can instead apply it as a soil drench. On the one hand, your plants might get some benefit from the drench. At the very least, it won't hurt your plants.
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What plants do not use neem oil?

Neem oil should not be sprayed on herbs such as basil, caraway, cilantro, dill, marjoram, oregano, parsley, or thyme. Care should be taken when spraying neem oil on plants that have delicate or wispy leaves–such as arugula, lettuce, peas, and spinach–since this can result in foliage burns.
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Why does neem oil stink?

Neem oil has a strong garlic/nutty aroma – unpleasant to some but loved by those who have experienced it's healing and protective powers. Some companies deodorize this oil to get rid off the smell, but it is my belief the strength and some benefits are lost in that process.
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Can you put neem oil directly on soil?

Why is Neem Oil preferred to other garden pesticides and insect repellents? Safe : Neem oil is safe to use and is non-toxic for the environment, humans, pets and even the plants and soil itself.
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How often should you spray plants with neem oil?

Apply neem in the evening for outdoor plants and out of direct sunlight for indoor plants to prevent leaf burning. Spray all surfaces of the leaves, including the undersides. Reapply every seven to 14 days as needed.
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Why is my neem oil chunky?

That's because it contains different compounds that solidify at different rates. The gunk at the bottom of the bottle may look bad but it's actually my favorite part of the oil. There's no solid reason – pun intended – just an intuition that it's the really good stuff.
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Can neem oil burn plants?

Regardless of the type of plant being treated, neem oil can damage plants by burning their foliage. Do not use on recent transplants or otherwise stressed plants. Though plants must be completely covered with neem oil for the pesticide to be effective, it is a good idea to test the product on a small area first.
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How long does neem oil take to work?

You are, on the other hand, making your plant very unattractive for insects and pests. Keep in mind that Neem Oil doesn't work right away. It takes a few days, usually about 3 to 4 days, and a few treatments before you start to see the results you're looking for.
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Can too much neem oil hurt plants?

If used too frequently, neem oil can harm plants by coating them in a thin layer of oil and thus choking their leafy pores, which are critical for photosynthesis, transpiration, and oxygen release. Neem oil can also cause foliage burns if applied during the wrong time of day.
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Can you eat plants sprayed with neem oil?

Neem oil is safe to use on edible plants but you need to be careful with the amount you use. A small amount will protect the plants from pests. But an overdose will kill the plants and it's toxic to humans as well. You will find neem oil used in some pesticides or you can use it in pure form as well.
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Does rain wash away neem oil?

Generally speaking, rain alone won't wash off neem oil once it's had time to dry since the oily residue will adhere to the plant's foliage. However, neem oil begins breaking down when exposed to sunlight and water, so rainfall will likely contribute to this process.
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Can I use expired insecticide?

Few garden products show an expiration date, but if it has passed, it is probably wise to discard the product according to instructions on the label. When no expiration date is listed, most pesticide manufacturers recommend discarding unused product after two years.
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Does insecticide have expiry date?

Yes, insecticides expire, even if the package doesn't have an expiry date. Eventually, they undergo a chemical change and can turn into crystals that make them impossible to use in sprayers.
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Can you water a plant with neem oil?

Watering your plant with a diluted solution of neem oil will help rid the soil of the larvae without harming your plant.
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Is neem oil safe to touch?

Slide 1: neem oil uses

It also has a low toxicity for humans. However, it's still wise to avoid contact with the eyes. Also, limit direct exposure to the chemical unless you have carefully read the label and determined it is safe for skin, as some neem oil products contain additives that can be irritants.
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Does neem oil repel mice?

Add drops of neem oil in soap water and spray the mixture to drive termites away. When rains drench everything outdoors, we keep indoors a cosy place.
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Can I leave neem oil on my face overnight?

Neem oil is potent, therefore leaving it overnight on your skin can cause irritation. You can apply it for one to two hours and wash it off with lukewarm water or use diluted oil.
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How do you dilute neem oil for plants?

To make 1 liter of a mild 0.5% basic neem oil spray, you will need:
  1. 5 ml (1 teaspoon) of neem oil.
  2. 1 liter of warm water.
  3. 1-2 ml (⅓ tsp) of mild liquid soap or another mild detergent.
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