Before using this table, make sure to always read the product label and ensure that the pesticide is federally approved for use on hemp. If the pesticide is not federally approved for use on hemp, it has to be registered in your state and allowed for use on hemp.
Also, read the product label to validate if you are lawfully allowed to use the product as some pesticides are registered for residential use only, while others are registered for commercial use and cannot be utilized by non-licensed applicators. Visit hawthornegc.com for a more detailed summary of regulatory state and federal requirements.
Pesticides for Insect, Mite and Disease Control and for the Rootzone Bio-Activation
| Product | What | When | Why |
| General Hydroponics® AzaMax | OMRI listed insecticide, miticide and nematicide that kills a wide variety of pests and acts as an antifeedant, growth inhibitor, anti-oviposition. Works best against immatures. | Apply at any plant growth stage every 7 to 14 days. | EPA registered product that is labeled for use on hemp as a foliar or drench application. |
| General Hydroponics® Defguard | An IPM foundational product, this broad spectrum biofungicide has been extensively tested and used across many plant types. Multiple modes of action work to protect against different foliar and soil pathogens of CBD Hemp | Best applied preventatively every 3 to 7 days when disease pressure is high, and at 10 to 28 days when pressure is low. | EPA registered disease control product labeled for use on hemp as a foliar application or drench. Colonizes soil to provide a favorable and competitive addition to the microbial community. |
| General Hydroponics® Exile | OMRI listed contact insecticide, miticide and fungicide that kills a wide variety of pests and powdery mildew through desiccation (rapid drying). Works best on immatures and soft-bodied insects. | Apply curatively at any plant growth stage every 7 to 14 days consecutively up to three times. Additional applications may occur if no injury is observed during previous applications. | EPA registered product that is labeled for use on hemp as a foliar application. |
| SNS 203 Concentrated Pesticide Soil Drench/Foliar Spray | Minimum risk pesticide that uses clove and rosemary oil to repel and suppress soft bodied insects. | Apply as a foliar or a drench treatment every 2 to 3 days. Works best as a preventative treatment. | Use the properties of essential oils to repel and suppress insects. |
| SNS 209 Systemic Pest Control | Minimum risk pesticide that uses rosemary oil to repel and suppress soft bodied insects including mites. | Apply as a foliar or a drench treatment every 3 to 4 days. Works best as a preventative treatment. | Use the properties of essential oils to repel and suppress insects. |
| PyGanic Specialty | OMRI listed insecticide and miticide that interferes with the neuronal system of the pest and provides quick kill. | Works well as a preventative or a curative treatment. Use no more than 10 times per season. | EPA-registered product that provides quick knockdown and kills the typical greenhouse pests. |
| NPK Industries Mighty | Fast-killing, ready-to-use insecticide and miticide with ovicidal properties. | Works well as a preventative or a curative treatment. Use as needed but no more than 10 times per season. | EPA registered product that quickly kills by smothering eggs and providing longer control. |
| Marrone Bio Innovations Venerate CG Bioinsecticide | Biological insecticide and miticide that kills many foliar feeding pests by degrading the exoskeleton and interfering with the molting process leading to mortality by contact or ingestion. | Best if applied as a preventative foliar treatment every 3 to 10 days. | EPA-registered product that uses a living microorganism to suppress pest populations. Works best against immatures. |
| Marrone Bio Innovations Regalia CG Biofungicide | Unique fungicide works by activating a plant’s defenses to protect before disease occurs. In addition to combating disease it also strengthens the plant’s cell walls and increases chlorophyll production to improve overall quality. | Use every 7 to 14 days before disease occurs. Frequency depends on conditions and disease pressure. | EPA registered product label that offers a different strategy for disease control. Rather than attacking the pathogen, it prepares the plant to ward off infection before disease occurs. |
| Marrone Bio Innovations Grandevo CG Insecticide | Biological insecticide and miticide that functions primarily as a stomach poison for use in the suppression of many foliar-feeding pests. | Best if applied as a preventative foliar treatment every 4 to 10 days. | EPA-registered product that uses a living microorganism to suppress pest populations. Works best against immatures. |
| Actinovate L & G Fungicide | This unique type of soil microbe called an actinobacteria creates a plant-protective barrier to combat fungal and bacterial pathogens. | Apply at establishment and any plant growth stage every 7 to 14 days. | Unique activity works to colonize soil and suppress harmful pathogens from infecting plants. |
| Green Cleaner | Minimum-risk contact insecticide, miticide and fungicide for the suppression of soft-bodied insects and powdery mildew. Kills eggs. | Apply at any plant growth stage as a preventative, or as a curative treatment every 1 to 2 days. | Soybean oil-based pesticide that also is effective against insect and mite eggs. Ideal for preventative pest control. |
| Flying Skull Nuke Em | Minimum-risk contact insecticide, miticide and fungicide for the suppression of soft-bodied insects and powdery mildew. Kills eggs. | Apply as a preventative foliar spray or as a drench every 5 to 7 days. Can be used as a curative treatment for minor pest infestations. | Harnesses the excellent properties of citric acid to kill and prevent a variety of pests. |
| The Amazing Doctor Zymes Eliminator | Minimum-risk pesticide that uses citric acid to kill insects, mites and some diseases. | Apply at any plant growth stage as a preventative or a curative treatment. | Uses the properties of essential oils to kill insects, mites and diseases. |
| Blacksmith Bioscience Megaphos | Phosphorus solubilizing bacteria. | Use through all growth phases. | Increases phosphorus availability to plants for better growth and improved yield. |
| Xtreme Gardening Azos | Root-enhancing bacterium, produces plant hormones and fixes nitrogen for aiding growth. | Use at propagation and through vegetative stages. | Increased rooting for growth. |
| Blacksmith Bioscience Nytrix Nitrogen Fixing Bacteria | Nitrogen fixing bacteria can convert atmospheric nitrogen into plant-available forms. | Use through all growth phases. | Better plant nitrogen-use efficiency. |
| Blacksmith Bioscience Armory Beneficial Bacillus | Blend of beneficial microbes designed to optimize growth. | Use through all growth phases. | Colonizes the rootzone with beneficial microbes for disease suppression and nutrient cycling. |
Disclaimer: When using this guide for recommendations on treating plant pest issues, you must always verify and follow any and all product label directions for use as required by federal and state laws.
