Plant showing signs of nutrient deficiency
Whatever the motive for spraying, we think it’s worth doing the job properly, and there are some basic measures we should take every time to make sure we get the best possible results and avoid damaging our plants. We?ll deal with these ten fundamental points first, then go on to talk in a bit more depth about foliar application afterwards.
6. Do test on a single leaf before spraying the entire plant. It?s always a good idea to spot-test new and unfamiliar products to make sure it?s not going to have an adverse effect on the whole plant. Simply apply to one leaf or a small area of the plant and wait, if there?s no damage after 24 hours then you?re probably safe to apply all over.
Surface tension causes beading of water droplets
I hope this brief guide will be some help in your garden. Remember, a well-conceived and consistent spray regime can contribute greatly towards improving plant health and achieving a problem-free harvest, but make sure to use products responsibly, always following the instructions and respecting your own health, that of others, of our plants and of the environment in general. Happy spraying!
An ample selection of plant growth stimulators and boosters suitable for foliar application are available to increase vigour, boost growth and reinforce plants’ immune systems, these include products such as Acti-Vera from BioBizz, Cannabogen?s Delta 8 or Vita Race by Plagron, all suitable for foliar application during vegetative growth to encourage bigger and healthier plants.
The Aquaking 5 litre pressure sprayer
9. Do use a fine spray for a more even coverage when foliar feeding. A slightly coarser spray should be used for compost tea and beneficial microbe application, which requires a larger droplet size to achieve effective inoculation.
Many plant problems with pests and diseases can be solved with a foliar application of a fungicide or insecticide, however any experienced grower will tell you that prevention is the key and regular use of organic preventive products will help greatly towards a trouble-free grow and a happy harvest. Fortunately many organic products are equally useful as preventive measures as they are at combating existing issues.
At some point almost all cannabis cultivators will need to apply a foliar spray of one kind or another to their plants. They could be in need of a fun
Take note of the recommended nutrient strengths of your solution. Most of the time, foliar feeding requires a much lower nutrient strength than feeding your plants through soil. If the product that you are spraying doesn’t specify the proper amount for foliar application, start with half the recommended dose.
Avoid spraying during flowering. Spraying the buds can be bad for a number of reasons. Depending on your spray solution, this can lead to anything from a spoilt taste to an increased chance for mouldy buds.
Always follow the safety instructions. Some commercial sprays may be safer to use than others, but you should always follow the guidelines for safe use. You obviously don’t want to spray potentially harmful substances without adequate protection such as gloves, a face mask, and protective eye gear. Make particular note of how safe the product is to spray on something that you will consume after harvest. Some commercial insecticides or fungicides may work great for ornamental plants, but they can be harmful if not outright toxic for vegetables and of course, for your precious weed! So always read and follow the instructions carefully before you spray.
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.
Don’t spray when you expect bad weather. Rain can make your foliar spray a waste of time by washing away or diluting your spray solution. The same goes for strong winds. When you spray outdoors, wait for rain and stormy weather to pass. When you spray indoors, it can be a good idea to turn off ventilation fans for an hour or two. This allows the solution to be absorbed by the plants without any major disturbances.
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.
There are two main types of sprayers available that you can use for foliar sprays; both types are useful depending on the circumstances.
Test your spray first to ensure that your plants won’t get irrevocably damaged. Rather than going full-out and spraying your entire crop with an untested product you just got from the internet, perform a test on one single leaf first. Wait for a day to see whether the application caused any damage before moving forward with a full feeding regimen.
The best time for foliar spraying is either early in the morning or late in the evening. Do not spray in direct sunlight. The sunlight can not only burn your plants through the “lens effect” from droplets on the leaves, it can also degrade active substances and nutrients contained in your solution. In the evening, the plant’s pores are fully open, which allows for a quicker intake as compared to during the day. If you grow indoors, the best time to spray is at the beginning or the end of the dark period.
Learn about how and why to foliar feed your cannabis plants. What makes foliar spraying so effective and how do you get started?