Ld50 - Study guides, Class notes & Summaries

Iowa Commercial Pesticide Applicator Category 1A Latest Update Graded A What is the greatest hazard when applying most herbicides? Injury to nontarget plants Name some herbicides which are very effective against germinating weeds but less effective on established weeds. Frontier, Lasso, and Dual What soil conditions reduce the activity of many herbicides and require increased rates for adequate weed control? Higher levels of soil organic matter or clay Two herbicides which are more active on ...

Pesticides - Answer- include herbicides, insecticides, fungicides, rodenticides, and many other substances used to kill, harm, or repel pests. General Use Pesticides - Answer- may be bought over the counter without a pesticide license. Restricted Use Pesticides (RUPs) - Answer- are a category of products that pose a higher risk to people, animals, or the environment. They can only be purchased by a person with a pesticide license; use requires supervision by a licensed applicator. Pestic...

Structural Pest Control Board Applicators Exam Study Questions with Complete Solutions What are the identifying features of a female black widow spider? Glossy black, globe-like abdomen with a deep red hour glass on her stomach. What are the identifying features of a black widow web? It is irregular with no distinct pattern and very strong in comparison to most other spiders. What does the term 'Ballooning' mean? When spiderlings (newly hatched spiders) climb to a high place,...

Acute Toxicity refers to toxicity from - a one time exposure to a pesticide Chronic Toxicity refers to toxicity from - many small exposures to a pesticide The Term LD50 refers to the level of toxicity where - 50% mortality is observed Pyrethroid pesticides exert their toxicity in the form of - a nerve poison with symptoms similar to chlorinated hydrocarbons Chronic Toxicity tests are conducted to determine - Teratogenic and Carcinogenic effects A carcinogen is a material that causes - canc...

WA Pesticide Test Exam Questions With 100% Correct Answers An inversion is when warm and cool air mix, causing turbulent air. T/F - answerFalse Which of these herbicides is more toxic? paraquat with an LD50 of 50 mg/kg 2,4-D with an LD50 of 700 mg/kg - answerparaquat with an LD50 of 50 mg/kg Which of the following must be recorded for a landscape herbicide application to be in compliance with WSDA for pesticide application recordkeeping? Starting and ending time of application Target pest(s) Nam...

When a pest reaches the , pest management procedures need to be applied to prevent it from reaching economically damaging populations.- : Economic Threshold 2. Protectant fungicides must be applied BEFORE infection occurs. (True or False): True 3. The key to minimizing the hazards of pesticide use to the applicator is to Avoid Exposure ANS True 4. The use of plants resistant to pests is a control method. a. mechanical b. biological c. genetic ANS. genetic Private Pesticide Applicator...

T/F: A key to minimizing the hazard of pesticide use to the applicator is to avoid exposure. True The use of temperature or humidity manipulation is a __________ control method for insects. Physical Drift problems can be reduced by: Placing a boom as close to the target as possible. Which is a concern when handling an emulsifiable concentrate pesticide? It may be easily absorbed through human and animal skin. T/F: EPA and WSDA are the only federal and state agenci...

Which of the following integrated Pest Management (IPM) practices should be followed when deciding whether control is required? - Regularly monitor pest activities For how long after an applicator's license has expired may he / she continue to apply pesticides legally? - A valid license is required to apply pesticides Formulations applied as liquids are always mixed with water - False What is an endangered species? - A plant or animal on brink of extinction Biomagnification is - An increa...

CardioPulmonary Rehab According to the ATS, what are the two specific objectives of pulmonary rehabilitation? - Answer: 1 - To control and alleviate symptoms and complications of respiratory impairment 2 - To teach patients how to achieve optimal capacity for activities of daily living Egan VII, p - 1226 Gas Therapy What is the weight of CO2 in a full D cylinder at 21 degrees Celsius and 14.7 psig? - Answer: 4 lbs McPherson, p - 26 Airwaycare Of what material are Jackson tracheostomy tu...

VTNE: Pharmacology Questions and Answers 100% Pass Who regulates controlled drugs? The FDA (Food and Drug Administration) and the DEA (Drug Enforcement Administration) C-I Schedule I drugs have the most abuse potential and no current medically acceptable use Marajuana, heroin C-II Schedule II drugs have a high abuse potential and are prone to cause severe dependence Written prescription only (except in emergencies with written script within 72 hrs) No refills Morphine, oxycodone, amphetamines,...