Defoliants - Study guides, Class notes & Summaries

Defoliation - ACCURATE ANSWERS Leaf loss or leaf absicisson. In cotton production, it usually refers to leaf loss associated with application of a chemical that injures the leaf. Defoliation can also occur through natural leaf maturation and senessence, particularly with cooling weather after boll development Desiccation - ACCURATE ANSWERS acclereated drying of plant tissue Harvest Aid Chemical - ACCURATE ANSWERS chemicals with various modes of action that facilitate machine harvest by inf...

PCA Exam Defoliants Defoliation Leaf loss or leaf absicisson. In cotton production, it usually refers to leaf loss associated with application of a chemical that injures the leaf. Defoliation can also occur through natural leaf maturation and senessence, particularly with cooling weather after boll development Desiccation acclereated drying of plant tissue Harvest Aid Chemical chemicals with various modes of action that facilitate machine harvest by influencing boll opening, reduci...

Pesticide Applicator Questions and Verified Answers Latest Update (2024/2025) | 100% Correct| Grade A+ Selective Herbicides Kills some plants but cause little to no injury to others. Kills most broadleaf plants and grasses. Non-selective Herbicides Toxic to all plants. Used when living plants are undesirable. Soil Sterilants Kills all plants and prevents reestablishment of weeds Contact Herbicides Kills the plant parts on which the herbicides are deposited. Only destroys the above ground ...

PCA Exam Defoliants Defoliation Leaf loss or leaf absicisson. In cotton production, it usually refers to leaf loss associated with application of a chemical that injures the leaf. Defoliation can also occur through natural leaf maturation and senessence, particularly with cooling weather after boll development Desiccation acclereated drying of plant tissue Harvest Aid Chemical chemicals with various modes of action that facilitate machine harvest by influencing boll opening, reduci...

Pest Control Exam Questions and Answers Rated A+ Pest an undesirable organism that injures humans, desirable plants and animals, manufactured products, or natural substances. pathogens disease-causing organisms, such as viruses, bacteria, or fungi Pesticide resistance When pests adapt and become resistant to a pesticide. First seen in resistance to DDT in 1947 bioaccumulation The accumulation of pesticide in the fatty tissue of some animals biomagnification The Food chain. Organisms with pes...

Biological Control - ANSWER finding suitable natural enemies of pests from their native home and after extensive testing, releasing the enemy so that they become established and control the pest without any further human intervention (some natural enemies are released periodically) Mechanical Control - ANSWER the use of devices, machines, and other physical methods to control pests or alter their environments (fences, traps, screens, nets, etc.) Forms of mechanical control - ANSWER 1. Cult...

Pesticide Applicator Actual Final Exam 2024 Pest - CORRECT ANSWER-An undesirable organism that injures humans, desirable plants and animals, manufactured products, or natural substances Pathogens - CORRECT ANSWER-Disease causing organisms Four Main Groups of Pest Organisms - CORRECT ANSWER-1. Weeds 2. Invertebrates 3. Pathogens 4. Vertebrates Weed - CORRECT ANSWER-Undesirable plant Invertebrate Examples - CORRECT ANSWER-Insects, mites, ticks, spiders, snails, slugs Pathogen Exampl...

QAL & QAC TEST QUESTIONS AND ANSWERS GRADED A+ 2024 Pesticides are - answer-Substance that control pests, they may be either naturally-occurring compounds like sulfur or synthetic (i.e. man-made) compounds like the insecticide malathion. Pesticides are - answer-1. Compounds that control pests 2. Plants defoliants 3. Plant growth regulators 4. Adjuvants Plant defoliants are in - answer-use to remove leaves from plants, most often to aid in the harvest of crops. Plant growth regulators ...

Washington Pesticide Laws and Safety Questions and Answers Already Passed What is a severe pest? A pest present in populations that are always above the economic injury level in the absence of control. What is an occasional or secondary pest? A pest that can cause damage above economic injury levels only at certain times. What is a potential pest? A pest that typically causes no apparent economic damage under normal circumstances. What is a migratory pest? A pest that may cause s...

Pesticide Applicator Test Questions and Answers 100% Solved Selective Herbicides Kills some plants but cause little to no injury to others. Kills most broadleaf plants and grasses. Non-selective Herbicides Toxic to all plants. Used when living plants are undesirable. Soil Sterilants Kills all plants and prevents reestablishment of weeds Contact Herbicides Kills the plant parts on which the herbicides are deposited. Only destroys the above ground part of plants Translocated Herbicides ...