Importancia de las malezas acuaticas y su control en PR

2,276 views

Published on

Importancia de las malezas acuáticas y su control en Puerto Rico – Prof. Edwin Abreu
Casa abierta EEA Río Piedras
30 de abril de 2010

Published in: Education
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
2,276
On SlideShare
0
From Embeds
0
Number of Embeds
121
Actions
Shares
0
Downloads
0
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Importancia de las malezas acuaticas y su control en PR

  1. 1. Importancia de las malezas acuáticas y su control en Puerto Rico<br />Edwin Abreu<br />University of Puerto Rico<br />
  2. 2. Objetives <br />1.To introduce insects for biological control of aquatic weeds: alligatorweed, waterlettuce and waterhyacinth.<br />2. To rear and release insects for the establishment in Puerto Rico.<br />3. Periodic sampling on plant density and insect damage to determine the impact of these insects on aquatic weeds.<br />
  3. 3. Problems produced by aquatic weeds<br /><ul><li>1. Reduce biodiversity as it is established as monoculture.
  4. 4. 2. Disrupt the natural ecology by substitution of native flora and fauna.
  5. 5. 3. Floating mats obstruct navigation and recreation activities.
  6. 6. 4. Change water parameters [CO2], [O2], pH.
  7. 7. 5. Exacerbate mosquito problems.
  8. 8. 6. Increase water loss by evapotraspiration(3.7 times water loss). </li></li></ul><li>Martínez 2002: lake eutrofication in PR was<br /> [37-63ug/L] TPL (Ej Plata, Carraizo y Dos Bocas)<br />
  9. 9. Total Phosphorus in lakes in Puerto Rico.<br />Límit EPA <br />in PR<br />1,000ug/L<br /> Criteria Std proposed by<br /> Martínez 2003 <br />20ug/L<br />Carr<br />DB<br />Pl<br />CA<br />GA<br />GU<br />CiD<br />Martínez 2002<br />
  10. 10. Water quality criteria for nitrogen<br />Junio 1998<br />water hyacinth and water lettuce can grow at 5 ppm<br />http://www.epa.gov/waterscience/standards/nutstra3.pdf<br />
  11. 11. 12<br />A<br />D<br />E<br />B<br />F<br />C<br />Propagation of alligatorweed and water lettuce in greenhouse in the Agriculture Experimental Station in Isabela.<br />alligatorweed<br />Water lettuce<br />
  12. 12. Alligatorweed biocontrol agents introduced in Puerto Rico<br />Stem borer<br />flea beetle<br />Vogtia malloi<br />Egg mass<br />
  13. 13. Alligator weedAlternanthera phylloxeroides(Amaranthaceae)<br />
  14. 14. West area in Puerto Rico<br />
  15. 15. Majagual Creek Feb 27 1999<br />January 2000<br />
  16. 16. mayo 2006<br />marzo 2007 <br />Majagual Creek, Mayaguez<br />
  17. 17. Río Hondo River, Bayamón <br />N<br />5<br />3<br />2<br />1<br />4<br />
  18. 18. El AmalJanuary 24 2001<br />
  19. 19. Liberación de A. hygrophila en Viejo cauce Río Hondo, 1 jul.1997.<br />Viejo cauce de Río Hondo área 1, 11 sept. 1997.<br />Viejo cauce de Rio Hondo Bayamón primera area de liberación, 9 de octubre de1997.<br />Viejo Cauce de Río Hondo. Área 1, 9 enero 1998.<br />
  20. 20. Viejo cuace Río Hondo area 3, 19 abril 1999<br />
  21. 21. Río Hondo<br />
  22. 22. Sept 2006<br />Sept 2006<br />Feb 2002<br />Mayo 2005<br />Río Hondo Bayamón<br />
  23. 23. Río Hondo<br />Area 3, Road 167 Bridge <br />Area 5, El Amal <br />
  24. 24. Neohydronomus affiniswater lettuce weevil<br />14 spp. of mosquitos were identified associated with water lettuce.<br />Ej Mansonia, Culex, Anopheles Aedes<br />
  25. 25. Water lettuce<br />Releases of:<br />2,328 N. affinis weevils .<br /> 938 plants <br /> 1,804 infested leaves <br />Campanero, 6 junio 1999<br />
  26. 26. Figura2. Quebrada Campanero en Toa Baja área norte el 3 de octubre de 2000.<br />Figura 1. Quebrada Campanero en Toa Baja, área norte el 27 enero de 2000.<br />Figura 3. Quebrada Campanero en Toa Baja área norte el 15 noviembre de 2000.<br />Figura 4. Quebrada Campanero en Toa Baja área norte el 10 diciembre de 2000.<br />Figura 5. Quebrada de Campanero en Toa Baja área norte el 1 de febrero de 2001.<br />Figura 6. Quebrada Campanero en Toa Baja área sur el 1 de febrero de 2001.<br />
  27. 27. Campanero, Bo. Ingenio, Toa Baja<br />Campanero 28 ago 2005<br />Campanero 12 sept 2006<br />
  28. 28. La Plata Dam site<br />December 2000<br />April 16 1998<br />January 30 2002<br />
  29. 29. Lago La Plata<br />La Plata, December 12 2005<br />
  30. 30. Eichhornia crassipesJacinto de agua<br />
  31. 31. Lago Carraizo, Trujillo Alto<br />Cuenca hidrográfica<br />
  32. 32. Estado del LagoCarraizo con jacinto de agua en el 2001 <br />Sept 2001<br />
  33. 33. Biocontrol of wartehyacinth in Puerto Rico<br />
  34. 34.
  35. 35. Waterhyacinth in Puerto RicoLago Carraizo<br />6 water sewages treatment plants in the hydrographic captation area<br />sobre 29,564m3 /día<br />
  36. 36. Water surface infested by waterhyacinth in Carraizo Lake <br />Hortensia 1996 <br />George 1998 <br />Hugo 1989 <br />
  37. 37. Sept 2001<br />March 2004<br />May 2005<br />Carraizo, Sector Chomos<br />
  38. 38. Carraizo, Sector Chomos<br />March 2007<br />May 2007<br />April 2006<br />
  39. 39. February 2008<br />March 2009<br />Carraizo, Sector Chomos<br />
  40. 40. June 2001<br />June 2001<br />February 2008<br />
  41. 41. Releases of Neochetina spp weevils and infested plants<br />
  42. 42. Proportion of N. bruchi and N. eichhorniae on water hyacinth in Carraizo Lake.<br />
  43. 43. Number of Neochetina spp. weevils per meter2 in Carraizo Lake.<br />
  44. 44. Orthogalumna terebrantis(Acarina: Oribatida: Galumnidae)<br />Detected in November 2005.<br />Releases begun in Dec 2005.<br />18 releases : 7,013 leaves of water hyacinth<br />
  45. 45. Releases of the mite O. terebrantis<br />
  46. 46. New aquatic weeds detected in Puerto Rico Giant Salvinia Salvinia molesta<br />
  47. 47. S. molesta at Dorado Golf Pond<br />
  48. 48. Salvinia minima<br />Río Grande Arecibo creek <br />Caño Tiburones Reserve, Arecibo<br />Also established in Wild Life Refugee of Cabo Rojo, DRNA<br />
  49. 49. Cyrtobagous salviniaepicudo de la salvinia<br />Muy efectivo contra Salvinia molesta<br />La larva barrena los rizoma y provoca que se desintegre.<br />El adulto se alimenta de las yemas de crecimiento evitando su crecimiento.<br />Mide 2-3 mm<br />Vive debajo de la hoja en contacto con el agua.<br />Ciclo vida 45-54d<br />Huevo 10d<br />Larva 21-30d<br />Pupa 14 d<br />USDA, ARS<br />Control efectivo en Australia, Nueva Guinea, India, Sri Lanka, <br />
  50. 50. Release of Salvinia weevil in Dorado Golf Pound<br />
  51. 51. Releases of Cyrtobagoussalviniae in Puerto Rico<br />This insect is not established in the Island, thus no effect has been detected so far. Possible explanation may be the low release number or different climatic conditions . <br />
  52. 52. Water lily problem observed in Cabo Rojo Wild Life Refugee, DRNA<br />
  53. 53. Hydrilla verticilliata in Puerto Rico 2001<br />
  54. 54. Lakes with aquatic weeds <br />Lake aquatic weeds<br />Carraizo waterhyacinth, water lettuce<br />Dos Bocas waterhyacinth<br />Caonillas Mimosa pellita<br />Guajataca smartweed<br />Guayabal waterhyacinth, water lettuce<br />Patillas Lake smartweed <br />Carite, Luchetii, Garzas & Cerillos no aquatic weed<br />
  55. 55. Patillas Lake<br />Guajataca Lake<br />Polygonum spp., smartweed<br />
  56. 56. Some eduactional manuscripts prepared on aquatic weed problem<br />
  57. 57. Newsletter reports<br />
  58. 58. Agradecimientos a nuestros colaboradores<br />Katherine Malpica <br />L. Almodovar<br />Dr. Nelson Semidey<br />UPR AES<br />Lourdes Bernier, Gregorio Figueroa<br /> Al Confrancesco, William Zattu, Charles Ashton , Michael Grodowitz (absent) (USACOE) <br />Ted Center (absent) (USDA, ARS), Phil Tipping (Univ Fl, USA)<br />
  59. 59. Gacias por su atención<br />

×