These printable botany flash cards cover herbicides.
There are 38 flash cards in this set (7 pages to print.)
To use:
1. Print out the cards.
2. Cut along the dashed lines.
3. Fold along the solid lines.
Sample flash cards in this set:
| Questions | Answers |
|---|---|
| What is the similarity between the terms weed and invasive plant? | Both are plants growing in unwanted areas. |
| What is different between the definitions of weed and invasive plant? | A weed is a plant growing in an unwanted area. An invasive plant is a plant growing, reproducing and sustaining outside its natural range and creating a new range. |
| List 5 control methods that may be coordinated into an integrated pest management (IPM) program. | Chemical, Mechanical, Biological, Preventative, Cultural. |
| Name three plant lists that have legislative authority. | Federal Noxious Weed List, FL Noxious Weed List, FLEPPC List |
| What is the best method to obtain a positive identification on a new weed species and provide a record of its occurrence? | Technical plant ID books, Completing a Field Reporting Form on FLEPPC website. |
| Difference between polar (salts) and non-polar (esters) herbicides? | Polar herbicides (salts) dissolve in water. Non-polar (esters) herbicides dissolve in oil. |
| List 2 Non-polar (esters) herbicide active ingredients: | 2-4-Dichlorophenoxyacetic acid and butoxyethyl ester. |
| List 5 polar herbicide active ingredients: | Codeine, ammonia, acetaminophen, caffeine, and nicotein. |
| What is the name of the outer layer of a leaf that herbicide must pass through? | Epidermis |
| What are three components of the epidermis layer? | Wax cuticle, cell wall, plasma membrane |
| What is the term that describes the most important factor that affects herbicide uptake from soils? | Adsorption |
| What is the term that is used to describe uptake of herbicides by plant roots? | Absorption |
| Layers of a woody (dicot) plant stem? | Epidermis, active xylem which includes cambium and phloem, then lignified xylem (inactive). |
| List four plant process that are affected by herbicides (modes of action) | Photosynthesis, Tissue development, Protein synthesis, Auxin interference. |
| Herbicides with which mode of action require additional record keeping under Florida Pesticide Law (core training)? | Auxin regulators |
| What is the term used for a herbicide that can be use for broadcast application and kill a target weed and not certain non-target plants that it comes in contact with? | Non-selective |
| List three application methods that can be used to selectivity control target vegetation. | Basal bark, stump treatments, hack and squirt |
| List 5 methods to reduce drift. | Don't spray on windy conditions, Don't spray into the wind, Don't spray when raining, Spray accurately, Spray til wet. |
| List five factors that adversely affect herbicide activity. | Drought, temp, rainfall, wind, growth stage. |
| List 4 ways in which herbicides can disappear from soil. | Adsorb, react with other substances in soil, metabolized by soil organisms, heavy rainfall can leach herbicide out of root zone. |
| List 5 ways in which herbicides may be deactivated once absorbed by plants? | Adsorbed to internal plant surfaces (cell walls), hydrolyzed, biochemically altered, photolysis, precipitated as insoluble compounds. |
| List two circumstances under which a broadcast herbicide application may be used. | Native species are absent or selective herbicide is being used. |
| What characteristic do all herbicides that are used for basal bark application have in common? | Oil-soluble formation |
| How quickly after felling a tree should herbicide be applied to the stump to optimize control? | Immediately |
| What must be listed on a herbicide label so that it can be legally applied to a particular site? | Instructions for storage and disposal, use of the product, and precautions for the user and the environment |
| What state agency should you contact for legal interpretation of label instructions? | Special Local Need (SLN) |
| What state agency issues permits for control of aquatic plants? | FWC |
| What must the applicator have when applying herbicide to control an invasive plant on a site that is allowed by Special Local Need registration (SLN)? | A visible permit |
| Which herbicides are likely to be absorbed by plant roots? | 2,4-D, Imazapyr, Triclopyr, Hexazinone, Metsulfuro. |
| Herbicide types of Mode of action- Auxin interference? | Triclopyr, 2,4-D |
| Herbicide types of Mode of action-Amino acid (protein) syntheses inhibitor | Metsulfuron, Imazapyr, Glyphosate |
| Herbicide types of Mode of action- Photosynthesis inhibitor | Hexazinone |
| Which herbicides are likely to leach? | 2,4-D, Imazapyr, Triclopyr, Hexazinone, Metsulfuron. |
| Which herbicide has the greatest persistence? | Imazapyr 25-142 half-life days |
| Who does the "Worker Protection Standard" (WPS) pertain to? | The applicator |
| Why is diesel fuel NOT recommended as a herbicide diluent for use in natural areas? | It contains toxic additives. |
| List two types of surfactants and how they modify performance of a herbicide solution applied to a leaf surface? | Spreaders: Increase area that a droplet of spray mixture will cover. Penetrants: Enhance ability of an agrichemical to enter a substance or penetrate a leaf. |
| 3 ways that the use of colorants can be helpful to a herbicide application? | See what you sprayed, see how much herbicide is left, see efficiency of limiting herbicide contact with non-targets. |
