Certified Crop Adviser (CCA) with Sustainability Specialty · USA / Canada / international · International Certified Crop Adviser program (American Society of Agronomy)
Original practice questions written to the published syllabus · not past papersWhat happens to pesticides after application and how to reduce harm: fate processes, residues, effects on non-target organisms, regulatory risk assessment and reduction strategies. Field IPM practice is in the crop protection subjects; this subject is the environmental science of pesticides.
In the exams: ICAR AIEEA-PG 3.4 Agricultural Chemicals; ICAR AICE subject 71 Unit 4 (pesticides); UGC NET Unit 6
Certified Crop Adviser with Sustainability Specialty
IPM and thresholds, resistance management, drift reduction and sprayer calibration, risk indicators and mitigation measures such as buffer zones.
How our questions for Certified Crop Adviser with Sustainability Specialty spread across the units of Pesticides in the Environment: Fate, Risk & Reduction. Difficulty: 2 easy, 22 medium, 11 hard.
| Spray drift and application technology | 9 | |
| Pesticide risk indicators and reduction targets | 7 | |
| IPM as risk reduction | 6 | |
| Pesticide risk assessment and registration | 4 | |
| Biopesticides and botanicals | 4 | |
| Environmental fate: sorption, degradation, volatilisation, leaching, runoff | 2 | |
| Effects on non-target organisms: pollinators, aquatic life, soil biota | 2 | |
| Classification of pesticides by target, chemistry and toxicity | 1 |
Choose an answer, then open the working. Each explanation says why the right answer is right and why the others are not.
Strongly sorbed pesticides such as paraquat reach surface water mainly:
D. Attached to eroded soil particles
High Koc compounds move with sediment in runoff.
Bees can be exposed to neonicotinoid seed treatments through:
B. Dust at sowing and residues in pollen and nectar
Systemic uptake into pollen, nectar and guttation, plus sowing dust.
A field receives one full standard dose of product A and half standard doses of products B and C. The treatment frequency index is:
B. 2.0
TFI = 1 + 0.5 + 0.5 = 2.0. Counting applications gives 3.
Lechenet and colleagues' study of French arable farms suggested that many farms could:
C. Cut pesticide use without loss of profit
Many farms could reduce use substantially without loss of productivity or profitability.
In 1986 Indonesia banned 57 insecticides on rice after outbreaks of:
B. Brown planthopper
Insecticides killed natural enemies, causing planthopper resurgence.
Rotating insecticides between different IRAC mode-of-action groups mainly:
A. Slows the evolution of resistance
Alternating modes of action reduces selection pressure.
A major barrier to full IPM adoption is that:
B. Pesticide prices omit their external costs
Cheap pesticides, seller advice, knowledge and time needs, and missing thresholds hinder IPM.
Nozzles deliver 1.2 L/min each, spacing is 0.5 m and forward speed 6 km/h. Using L/ha = (L/min x 600)/(km/h x spacing m), the application volume is:
C. 240 L/ha
1.2 x 600 / (6 x 0.5) = 720 / 3 = 240.
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