PART 2: PEST, DISEASE, AND WEED MANAGEMENT INPUTS — A = Allowed; R = Restricted (requires PGS approval prior to use).
Inputs for pest, disease, and weed management
Conditions for using traps and pest management supplies
| Inputs | A/R | Description and conditions |
|---|---|---|
| Insect traps | A | There are various types of traps: sticky traps (with attractants or glue/grease), light traps. |
| Sulfur | A | Used to control fungal mold but must be applied with caution; leaves may scorch if used in excessively hot weather. |
| VND | R | Control fungi and bacteria. Use with caution; avoid excessive spraying. Bordeaux mixture (copper sulfate, quicklime, and water) at a 40:40:4 ratio may be used and applied immediately. It may cause leaf scorch. |
| Microorganisms | A | Permitted for use, except for genetically modified (GMO) products. |
| Baking soda (Sodium bicarbonate) | R | Control fungi, especially downy mildew. Ratio: 5–10 grams per 1 liter of water. |
| Beneficial insects | A | Can be introduced for biological control. |
| Mineral oil | R | Controls insects, typically used with water at a 1% ratio. |
| Bt bio-pesticide (Bacillus thuringensis) | R | Except those of genetically modified (GMO) origin. |
| Repellent plants | A | Lemongrass, citronella grass, etc. |
| Chrysanthemum | R | Natural pyrethrum in chrysanthemums can be used for insect control, but it also affects predatory organisms, especially on citrus trees. |
| Attractants (Pheromones) | A | Used to attract insects, often placed in traps. |
| Tobacco | R | Tobacco tea is permitted for insect control and seed soaking prior to planting. The use of pure nicotine is prohibited due to high toxicity to warm-blooded animals (LD50 = 55). |
| Derris plant (Derris spp) | R | Less toxic than tobacco but can cause skin burns. Controls beetles and flying insects. LD50 = 132. Leafy greens must observe a pre-harvest interval of at least 7 days. Do not use near water sources as it is toxic to fish. |
| Sticky substances | A | Use soft soap. |
| Plant extracts | R | Use with caution as it can harm beneficial insects. Extracts from various plants are often steeped in water and used like tea. |
| Neem | R | Controls insects (usually sold in liquid form) but can be prepared from local chinaberry sources. |
| Viruses | A | Must be non-GMO. Can be used for pest control, etc. |
| Compost tea / Compost extract | A | Diluted solution (one liter of compost extract diluted with 10–20 liters of clean water). Used to control fungal diseases such as gummosis (Phytophthora). |
| Weed control | R | The use of all herbicides is prohibited. Use mulching with plant materials or plastic sheeting. |
| Vinegar | A | Controls diseases, weeds, and insect pests. Dilute before spraying. |
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