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Ag Chem Final Review
Ag Chem App final review lab
| Question | Answer |
|---|---|
| What's the difference between the common name and brand name? | Common name: name of active ingredient Brand name: company name of product |
| What are the 3 main types of liquid formulation? | Soluble Liquid Emulsifiable Concentrate Flowable |
| What is the formulation of the herbicide that is a granule mixed with water and sprayed? | Water Dispersible Granule |
| Which adjuvant is best for increasing absorption into leaves? | Methylated Seed Oil |
| Which nozzle tip wears out the fastest? | brass |
| Which nozzle tip lasts the longest? | ceramic |
| What is the order of toxicity labels from least toxic to most toxic? | Caution, warning, danger, danger/poison |
| Describe the different forms to get rid of pests. 1-Biological 2-Physical 3-Cultural 4-Environmental Modification 5-Host Resistance 6-Regulatory 7-Chemical Control | 1- using living organism or natural enemy 2- using devise or machine or physical process 3- altering field conditions 4- altering moisture, temp or air 5- different crop varieties 6- implementing laws 7- using chemicals |
| Which nozzle produces the largest droplet sizes reducing drift? | Air induction |
| Which term represents a pesticide binding to soil particles? | adsorption |
| Which term represents a pesticide turning into a gas and is still toxic? | Volitilization |
| What are the 3 C's of managing a pesticide spill? | Control, Contain, Clean up |
| What type of material is the worst for shelving and floors in a storage room? | Wood |
| What is a good way to store partially used pesticide container? | in plastic tubs |
| Atrazine has the risk of run-off or leaching after it is applied. What type of pollution is this? | non-point source |
| Temperature inversion can cause long distance spray drift. What time of day do they generally occur? | before sunrise, early morning |
| What are 2 factors about the location and environment that should be considered to prevent drift damage? | wind speed, wind direction, direction to sensitive area |
| What risk do water dispersible packages and dry granule products reduce? | inhalation |
| What is the value or purpose of knowing the group number? | Change site of action to prevent resistance |
| How many years after spraying a restricted use pesticide must records be kept? | 3 years |
| What is it called when an herbicide is applied to the soil for pre-emergence weed control? | Residual |
| What is the difference between selective and non-selective? | selective only kills certain plant species non-selective kills everything |
| Between 2 pesticides how do you know which one is more toxic based on the LD50? | The one with the smaller dose that killed 50%of the test animals |
| Describe these types of labels: -24c -Section 18 -Section 3 | 24c: Special Local Need adds a specialty crop in a specific area Section 18: Emergency exemption for a temporary label for a pest outbreak Section 3: the original full-federal registration |
| What type of adjuvant is designed to improve droplet spread on plant leaves? | Surfactant |
| How many rinses of a sprayer are recommended to prevent herbicide contamination? | 3 rinses |
| What are the 4 routes of possible exposure to chemical? | dermal, oral, respiratory, ocular |
| What are the 2 use classifications? | Restricted and Unclassified |
| Describe the end result of: -Solution -Suspension -emulsion | -Solution: Completely dissolved -Suspension: Particles are still visible in water -Emulsion: Thick and oily, looks like paint |
| What are the 4 factors that influence spray volume of a nozzle? | Speed, size, pressure, spacing |
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