All 4 Pests Revolutions & Schemes questions the Punjab PSC asked between 2018 and 2024, each with a worked answer and the exam it came from. First 10 free to read.
Free to read, with the worked answer and the exam each one came from. The book prints this topic in the order the Commission favours, so these are the ones to know first.
Crop rotation controls pests because changing the crop breaks the life cycle of pests and diseases that live on one crop. It also improves soil fertility, especially when pulses that fix nitrogen are grown in turn, but that is a separate benefit and not the reason pests are controlled, so R does not explain A.
HortiNet is APEDA's internet-based traceability system for export of grapes, pomegranate and vegetables: farm registration, testing and certification are all recorded online, and its mobile app captures the geo-location of each farm. So statements I, II and III are correct. Statement IV is wrong: farms are registered and approved by the State Horticulture Department, and sampling is done by APEDA-recognised laboratories whose reports go into the system, not by private lab agencies.
Trichoderma harzianum is a soil fungus used as a biocontrol agent. It parasitises and out-competes soil-borne plant pathogens such as Fusarium, Pythium, Rhizoctonia and Sclerotium. It is sold as a bio-fungicide for seed and soil treatment. It is not used for wasteland reclamation, bioremediation of contaminated soil or gene transfer. Gene transfer is the role of Agrobacterium tumefaciens.
Endosulfan is the banned insecticide. It is a persistent organochlorine that accumulates in the food chain. It was linked to severe health damage in Kerala's cashew-growing belt. The Supreme Court ordered a nationwide halt to its production and sale in May 2011. Punjab prohibited its use in agriculture. The other three names are not registered insecticides at all.
The Commission set 4 Pests Revolutions & Schemes questions across 4 papers between 2018–2024. That is the whole set, not a sample — every one of them is in the book, and the 4 most-asked are on this page free.
Not in this set — each of these 4 was set once in the years covered. Questions elsewhere in the book do repeat, and carry a badge saying how often.
Here. Every question on this page is a solved MCQ: the four options as printed, the correct answer, and a worked explanation in plain English — not just a letter. The rest of the 4 are in the book, in the same form.
Switch to Attempt mode at the top of the questions. You get one question at a time and it is marked the moment you pick an option, with the reason underneath — the same way the exam feels, on your phone.
The questions are on screen rather than in a downloadable file, so they stay current and correct. The printed book has all 4 of these plus the rest of the General Knowledge section, and every buyer gets the whole thing online as well.
The exams behind these questions, most first. A paper here is a sitting: a question set in two papers of the same sitting counts once.
| Exam | Year | Questions |
|---|---|---|
| Principal, Industrial Training Institute (Women) | 2024 | 1 |
| Naib Tehsildar | 2023 | 1 |
| Analysts | 2022 | 1 |
| Punjab State Civil Services Combined Competitive Examination-2018 Mains Examinat | 2018 | 1 |