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foliar spray prevent seeds marijuana

A foliar spray made with potassium soap (insecticidal soap) is an excellent option to take on and then take out various harmful insects. It is particularly effective against aphids, which are some of the most common cannabis pests. A mix of neem oil dissolved in potassium soap is doubly effective. The potassium soap gets rid of the pest on contact, and the neem oil helps prevent future attacks while strengthening your plant’s defenses.

Foliar sprays are a common and effective way to treat your plants for many cannabis pests and diseases such as mites, powdery mildew and others. One popular substance that acts as both an immediate treatment and preventative measure is neem oil.



Neem oil has the advantage of being a natural insecticide that also has some fungicidal properties. Cannabis growers use a neem oil foliar spray together with aloe vera juice and some type of emulsifier like potassium silicate to dissolve the oil. Weekly sprays during the vegetative phase can strengthen plants and increase their resistance against pests and pathogens.

Foliar feeding does not replace the normal process by which plants uptake nutrients. This happens through your plants’ roots that are embedded in soil or some other growing substrate. Foliar feeding, however, can be a very effective way of supplementing nutrients in the short-term. It is particularly effective if you want to provide your plants with secondary nutrients like magnesium or calcium. It is also a very beneficial way to provide zinc, iron, manganese and other micronutrients to your plants.

In addition to speed, foliar feeding has also other positive effects. When the plant is taking in nutrients via its foliage, this causes it to give off more carbohydrates into their root zone. This is beneficial for the microorganisms in the growing substrate that help assist with nutrient uptake.

A foliar spray provides a fast and effective way to address nutrient deficiencies. It is also the most common way to apply insecticides and fungicides. Learn more about foliar feeding and how to use it to your advantage.

Foliar feeding works wonders when it comes to raising your plants to their full potential, but only when they are vegging or in the first few weeks of flowering. You don’t want to foliar feed your plants with developing buds and risk nutrient residue contaminating your hard work.

When to Use Foliar Spray

When’s the Right Time for Foliar Feeding?

Foliar feeding cannot replace all other types of feeding, but it’s a great tool for cannabis growers to have on-hand, especially when plants exhibit signs of deficiency.

Foliar feeding can also be used as a preventative tool to keep your garden thriving. This is accomplished by applying an array of macronutrients that will help provide your plants with a well-balanced diet.

Make a Proper Nutrient Solution