California Code of Regulations › Title 3 - Food and Agriculture › Division 4 - Plant Industry › Chapter 3 - Entomology and Plant Quarantine › Subchapter 4 - Plant Quarantine › Article 4 - Interior Quarantine (Regulations) › Section 3417 - Mexican Fruit Fly Interior Quarantine

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
A quarantine is established against the following pest,
						its hosts and possible carriers.
(a)
					 Pest. Mexican fruit fly (Anastrepha ludens).
(b) Area Under Quarantine.
(1) An area shall be designated as under
					 quarantine when survey results indicate an infestation is present, the
					 Department has defined the infested area, and the local California County
					 Agricultural Commissioner(s) is notified and requests the quarantine area be
					 established. The Department shall also provide electronic and/or written
					 notification of the area designation(s) to other California County Agricultural
					 Commissioners and other interested or affected parties and post the area
					 description to its website at:
www.cdfa.ca.gov/plant/mexfly/regulation.html
.
					 An interested party may also go to the above website and elect to receive
					 automatic notifications of any changes in quarantine areas through the list
					 serve option.
(2) If an area is not
					 undergoing the sterile insect technique, an infestation is present when eggs, a
					 larva, a pupa, a mated female or five or more male or unmated female Mexican
					 fruit fly adults are detected within three miles of each other and within one
					 life cycle. In an area undergoing sterile insect technique the criteria for an
					 infestation are the same except a single mated female does not constitute an
					 infestation but counts towards an adult for five or more.
(3) The initial area under quarantine shall
					 be a minimum of a 4.5 mile radius surrounding the qualifying detections being
					 used as an epicenter. Commercial host properties shall not be split by the
					 quarantine boundary line and the boundary line shall be expanded beyond the 4.5
					 miles as necessary to encompass such host material in its entirety. Wherever
					 possible, known accepted mapping features, including but not limited to roads,
					 streets, highways, creeks, streams, rivers, canals, city, county, State, park
					 and forest boundary lines are used first and if there are no acceptable
					 features such as these then imaginary lines with or without latitude and
					 longitude points may be used.
(4)
					 Satellite infestations: a detection of a single life stage of Mexican fruit fly
					 within any established quarantine area may be considered a satellite
					 infestation and may be used as the epicenter using an additional 4.5 mile
					 radius surrounding the detection to expand the quarantine area.
(5) Any interested party or local entity may
					 appeal an area designation by submission to the Department of a written request
					 for review of the designation accompanied by clear and convincing evidence
					 justifying a change in the designation. The appeal must be filed no later than
					 ten (10) working days following receipt of the notice of designation. The
					 Department must respond with a written decision no later than ten (10) working
					 days following receipt of the appeal. During the pending of the appeal, the
					 designation under appeal shall remain in effect.
(6) The infested area designation shall be
					 removed if no additional life stages are detected by trapping or visual surveys
					 for three life cycles after the last detection within the quarantine
					 area.
(7) A life cycle is an
					 estimate of insect phenology based on a heat degree day temperature driven
					 model. Base developmental temperature thresholds are used in this model's
					 calculations and it estimates the generation time period necessary for the
					 completion of a generation of Mexican fruit fly. Daily minimum and maximum
					 temperatures are used to produce a sine curve over a 24-hour period. The degree
					 days for that day are estimated by calculating the area above the threshold and
					 below the curve, assuming that the temperature curve is symmetrical around the
					 maximum temperature. For Mexican fruit fly the Department uses the lifecycle
					 model with 48.92 ° Fahrenheit base developmental temperature and 1357
					 degree days Fahrenheit per generation.