ipm for waterhyacinth control - uf/ifas oci | home tue… · microsoft powerpoint - 1 tues 4a 325...

12
IPM for waterhyacinth control Lyn Gettys, Phil Tipping and Carl Della Torre III [email protected]

Upload: others

Post on 16-Jul-2020

3 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: IPM for waterhyacinth control - UF/IFAS OCI | Home Tue… · Microsoft PowerPoint - 1 Tues 4A 325 Lyn Gettys_UPDATED Author: tamar Created Date: 5/15/2015 11:02:44 AM

IPM for waterhyacinth control

Lyn Gettys, Phil Tipping and Carl Della Torre [email protected]

Page 2: IPM for waterhyacinth control - UF/IFAS OCI | Home Tue… · Microsoft PowerPoint - 1 Tues 4A 325 Lyn Gettys_UPDATED Author: tamar Created Date: 5/15/2015 11:02:44 AM

Background – why this research?• FWC Invasive Plant Management Section 2013‐

2014 RFP – FLEPPC Cat 1 and 2 plants

• IPM for waterhyacinth• 2,4‐D• Biocontrol insects

• Neochetina sp. (2)• Megamelus scutellaris

• Reduce herbicide use?• $3.5MM in FY 11‐12

Page 3: IPM for waterhyacinth control - UF/IFAS OCI | Home Tue… · Microsoft PowerPoint - 1 Tues 4A 325 Lyn Gettys_UPDATED Author: tamar Created Date: 5/15/2015 11:02:44 AM

• Eichhornia crassipes• S. America late 1800s

– Almost any water– Leaves round, rubbery– Inflated petioles– Basal rosette arrangement– Dark feathery roots– Large showy purple flowers

Waterhyacinth

Page 4: IPM for waterhyacinth control - UF/IFAS OCI | Home Tue… · Microsoft PowerPoint - 1 Tues 4A 325 Lyn Gettys_UPDATED Author: tamar Created Date: 5/15/2015 11:02:44 AM

2,4‐D• Synthetic auxin• 1940s

Page 5: IPM for waterhyacinth control - UF/IFAS OCI | Home Tue… · Microsoft PowerPoint - 1 Tues 4A 325 Lyn Gettys_UPDATED Author: tamar Created Date: 5/15/2015 11:02:44 AM

• Two Argentine weevils– Neochetina bruchi (1974)– Neochetina eichhorniae (1972)– Widely distributed; substantial damage

• Plant hopper– Megamelus scuttelaris– S. America (2010)– Augmenting now

Waterhyacinth critters

Page 6: IPM for waterhyacinth control - UF/IFAS OCI | Home Tue… · Microsoft PowerPoint - 1 Tues 4A 325 Lyn Gettys_UPDATED Author: tamar Created Date: 5/15/2015 11:02:44 AM

Materials and methods• 3 x 2 factorial

• 2,4‐D: 4qpa (op), 2qpa (half op), 0 (control)• Critters: present, absent (insecticides)

• Mesocosms; 5 reps, CRD• 2 July – 7 Nov: 100% cover

• Insecticides or critters + H2O• 2,4‐D: backpack; 400gpa

• Harvested 3 MAT

Page 7: IPM for waterhyacinth control - UF/IFAS OCI | Home Tue… · Microsoft PowerPoint - 1 Tues 4A 325 Lyn Gettys_UPDATED Author: tamar Created Date: 5/15/2015 11:02:44 AM

Results: 1MAT (visual)

Page 8: IPM for waterhyacinth control - UF/IFAS OCI | Home Tue… · Microsoft PowerPoint - 1 Tues 4A 325 Lyn Gettys_UPDATED Author: tamar Created Date: 5/15/2015 11:02:44 AM

Results: 2MAT (visual)

Page 9: IPM for waterhyacinth control - UF/IFAS OCI | Home Tue… · Microsoft PowerPoint - 1 Tues 4A 325 Lyn Gettys_UPDATED Author: tamar Created Date: 5/15/2015 11:02:44 AM

Results: 3MAT pix

Critters

NoCritters

Control 2qpa 4qpa

Page 10: IPM for waterhyacinth control - UF/IFAS OCI | Home Tue… · Microsoft PowerPoint - 1 Tues 4A 325 Lyn Gettys_UPDATED Author: tamar Created Date: 5/15/2015 11:02:44 AM

Results: 3MAT (DW)

Page 11: IPM for waterhyacinth control - UF/IFAS OCI | Home Tue… · Microsoft PowerPoint - 1 Tues 4A 325 Lyn Gettys_UPDATED Author: tamar Created Date: 5/15/2015 11:02:44 AM

Conclusions• IPM good…• Takes a while; 3MAT biomass

• No‐insect: 4qpa = 2qpa; both: 50% biomass of control• Biocontrol: 4qpa GONE; 2qpa: 5% biomass of control

THM: IPM for WH  less 2,4‐D  less $$$

Page 12: IPM for waterhyacinth control - UF/IFAS OCI | Home Tue… · Microsoft PowerPoint - 1 Tues 4A 325 Lyn Gettys_UPDATED Author: tamar Created Date: 5/15/2015 11:02:44 AM

Thanks! Questions? [email protected] Della Torre IIISam SardesKyle ThayerJeremiah  FoleyEileen Pokorny