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IPM Organic Webinar Lab-2

Integrated Pest Management in Organic Agriculture Answer Worksheet IP...
Course

Integrated Pest Management (PLTH 108)

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Students shared 9 documents in this course
Academic year: 2019/2020
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California State University Fresno

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Kelsey Galvan PLANT 163 – March 31, April 1- Integrated Pest Management in Organic Agriculture Answer Worksheet

  1. Which of the webinars did you watch? IPM in organic field crops

  2. Briefly (2-5 sentences) describe the crop system and pest problems that the presenter discusses. Be sure to identify the major pests in the system and the kind of damage they cause. Discussing the diseases and pests of peaches and pecans. Major pests in pecans include pecan weevil (make home in trunk and burrow), aphids Lepidoptera, and stink bugs. Pecans also have diseases such as pecan scab, anthracnose, powdery mildew, and phytophthora. As for peaches, the pests are plum curculio, and peach tree borer. The diseases are a bit higher consisting of brown rot, scab, bacterial spot, armillaria and peach tree shart life.

  3. What cultural control techniques did they suggest for controlling the pests? Pecans -Host resistant variety pecans-excel, mandan, Elliot, caddo. -Orcharch hygiene: keeps diseases out, remove trash, any debris (especially anything that can be an inoculum), remove old nuts Peaches -Use resistant cultivars to prevent diseases -Orchard hygiene: remove mummies, prune the infected wood areas, remove infected trees -to avoid armillaria root rot avoid pruning later in the season, use rootstock that is resistant to PTSL armillaria (clonal semi-dwarf plm-peach hybrid -Wind breaks can be helpful to reduce damage

  4. What mechanical control techniques did they suggest for controlling the pests?

Pecans/peaches: shake the mummies off the tree for bacterial spot

  1. What biological control techniques did they suggest for controlling the pests? Pecan weevil: used endemic fungi, they used bassiana Some good biocontrol for the field: lacewings, lady bugs, fly, and wasp parasitoids, some nematodes, microbes, virus Entomopathogenic nematodes can be used to control citrus root weevil, black vine weevil, white grubs, fungus gnat, codling moth.

  2. What chemical control techniques did they suggest for controlling the pest, if any? Pecan scab: Bordeaux mixture (hydrated lime + copper II sulfate) Peach scab: sulfur fungicide is acceptable, it can be just as effective as conventional fungicides

  3. In what ways was organic IPM similar to or different from conventional IPM?

Since organic tries to maintain the use of natural resources, they seem to have a lot in common with conventional especially for cultural practices. Both practices have a variety of techniques that are intermixed with each other. Prevention is a significant factor for both, because if growers are able to prevent a problem from even occurring then they just might have saved their yield, time, money or all three. With the two having the same goal to reach the maximum amount of yield, growers are still growing with keeping in mind they need these crops to be healthy and safe. The main difference in organic is that pesticides are a last resort, and some may only use natural sprays, but that doesn’t mean that both don’t have the concern of pesticide residue and toxicity.

Youtube video: What is integrate pest management (IPM) and how to use it in your garden youtube/watch?v=ABVvq6i8MF

This is a quick introduction video about organic IPM from an organic farmer. It brings up P.A.M, Prevention, avoidance, monitoring, suppression. Talking about the different types of controls, using more than one and having the collide or mix different methods.

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IPM Organic Webinar Lab-2

Course: Integrated Pest Management (PLTH 108)

9 Documents
Students shared 9 documents in this course

University: California State University Fresno

Was this document helpful?
Kelsey Galvan
PLANT 163 – March 31, April 1-2
Integrated Pest Management in Organic Agriculture
Answer Worksheet
1. Which of the webinars did you watch?
IPM in organic field crops
2. Briefly (2-5 sentences) describe the crop system and pest problems that the presenter
discusses. Be sure to identify the major pests in the system and the kind of damage they
cause.
Discussing the diseases and pests of peaches and pecans. Major pests in pecans include pecan
weevil (make home in trunk and burrow), aphids Lepidoptera, and stink bugs. Pecans also have
diseases such as pecan scab, anthracnose, powdery mildew, and phytophthora. As for peaches,
the pests are plum curculio, and peach tree borer. The diseases are a bit higher consisting of
brown rot, scab, bacterial spot, armillaria and peach tree shart life.
3. What cultural control techniques did they suggest for controlling the pests?
Pecans
-Host resistant variety pecans-excel, mandan, Elliot, caddo.
-Orcharch hygiene: keeps diseases out, remove trash, any debris (especially anything that can be
an inoculum), remove old nuts
Peaches
-Use resistant cultivars to prevent diseases
-Orchard hygiene: remove mummies, prune the infected wood areas, remove infected trees
-to avoid armillaria root rot avoid pruning later in the season, use rootstock that is resistant to
PTSL armillaria (clonal semi-dwarf plm-peach hybrid
-Wind breaks can be helpful to reduce damage
4. What mechanical control techniques did they suggest for controlling the pests?
Pecans/peaches: shake the mummies off the tree for bacterial spot
5. What biological control techniques did they suggest for controlling the pests?
Pecan weevil: used endemic fungi, they used bassiana
Some good biocontrol for the field: lacewings, lady bugs, fly, and wasp parasitoids, some
nematodes, microbes, virus
Entomopathogenic nematodes can be used to control citrus root weevil, black vine weevil, white
grubs, fungus gnat, codling moth.
6. What chemical control techniques did they suggest for controlling the pest, if any?
Pecan scab: Bordeaux mixture (hydrated lime + copper II sulfate)
Peach scab: sulfur fungicide is acceptable, it can be just as effective as conventional fungicides
7. In what ways was organic IPM similar to or different from conventional IPM?

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