100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
PSS 021 Exam 2 Questions & Answers 2024/2025 CA$11.48   Add to cart
Quickly navigate to
Preview
  2.  
  3. PSS 021
  4.  
  5. PSS 021

Exam (elaborations)

PSS 021 Exam 2 Questions & Answers 2024/2025
 6 views  0 purchase
  • Course
  • PSS 021
  • Institution
  • PSS 021

PSS 021 Exam 2 Questions & Answers 2024/2025 Plant signaling - ANSWERSplant releases defensive chemicals to help defend itself from herbivores pest management - ANSWERSstrategies to deal with harmful pests in agriculture chemical control - ANSWERSpesticide-substance or mixture of substan...

[Show more]

Preview 2 out of 6  pages

Document information

  • August 14, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • pss 021 exam 2 questions answers

Written for

  • PSS 021
  • PSS 021

Seller

avatar-seller
Bensuda

Reviews received

Content preview

PSS 021 Exam 2 Questions & Answers
2024/2025

Plant signaling - ANSWERSplant releases defensive chemicals to help defend itself from herbivores



pest management - ANSWERSstrategies to deal with harmful pests in agriculture



chemical control - ANSWERSpesticide-substance or mixture of substances intended for preventing pests



cultural controls - ANSWERSresistant varieties, crop rotation, intercropping, sanitation, phenological
asynchrony



alternatives to pesticides - ANSWERSGE crops, RNA inference, IPM, ecological and sustainable
agriculture, organic farming



biological control (3rd level) - ANSWERSthe use of living organisms to control pests, insects, weeds or
diseases



classical biological control - ANSWERSbio control agent, problem pest species, controls bug establishes
control and kills issue bug



inoculation - ANSWERSsmall numbers of natural enemies when pest population is very low to keep pest
at low numbers. find predator, inoculate, allow take off (specialist bug, PREVENTATIVE)



inundate - ANSWERSlarge numbers of natural enemies for an immediate reduction in pest population.
allow take off, CURATIVE



conservation - ANSWERSmake environment habitable for predators

, predators - ANSWERSbio control agent, kills prey immediately, exist outside prey, usually are larger than
prey. young adults find and consume the prey



parasitoids - ANSWERSbio control agent, kills hosts slowly, has one host per lifetime, exists inside or on
the host, adults find the prey and don't consume, the young consume but don't find



parasites - ANSWERSbio control agent, mostly do not kill prey, have one host per lifetime, exist inside/on
host, smaller than hosts, adults and young feed and often spend entire life on one host



predator characteristics - ANSWERSmostly mostly generalists, will prey on anything that meets certain
criteria. examples: beetles, lacewings, spiders, mites. not the best control agent so will feed on each
other



parasitoid characteristics - ANSWERSmostly specialists, not all, both ___ and prey have developed
defenses to protect themselves through time. effective when properly researched (curative)



pros of generalists - ANSWERScontrol multiple types of pests, don't require high population of pest



cons of generalists - ANSWERSmay not be effective



pathogens - ANSWERSdisease causing organisms



conservation agriculture principles - ANSWERS1.permanent organic soil cover (cover crops) 2.
diversification of crop species grown in sequences (time/place)

3. low tillage



organic agriculture - ANSWERSrotating crops, managing pests naturally, diversifying crop and livestock,
improving soil with compost and manures



agroecology - ANSWERSresponse science, transdisciplinary, engages social sciences and broader
agro/food system, roots in ecology and agronomy, reflection and action, participatory from different
players

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Bensuda. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$11.48. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

81113 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
CA$11.48
  • (0)
  Add to cart