                 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                            WASHINGTON, D.C. 20460
                                       
                                       
              OFFICE OF CHEMICAL SAFETY AND POLLUTION PREVENTION
 							   
                                                            PC Code No.: 124871
                                                            DP Barcode:  387358
                                                           Date: April 11, 2011
	

MEMORANDUM 
                                                                               


Subject: 	EFED Risk Assessment for the Proposed IR-4 Use of the Spirodiclofen Product ENVIDOR(R) as an Insecticide on Tropical Fruits

To:	Rita Kumar, RM Reviewer 
		John Hebert, RM 07 
            Registration Division 

From:	Joseph DeCant, Ecologist
		Larry Liu, Ph.D., Chemist
            Environmental Risk Branch V
            Environmental Fate and Effects Division (7507P)

Through:	Mah Shamim, Ph.D., Branch Chief
            Environmental Risk Branch V
            Environmental Fate and Effects Division (7507P)

The current IR-4 registration requested for the use of the spirodiclofen product ENVIDOR(R) on certain tropical fruits has been reviewed by the Environmental Fate and Effects Division (EFED).  The tropical fruits covered under this registration request include acerola, atemoya, biriba, cherimoya, custard apple, feijoa, jaboticaba, guava, ilama, longan, lychee, passionfruit, persimmon, pulasan, rambutan, soursop, Spanish lime, starfruit, sugar apple, wax jambu.  The registrant is seeking a new use of spirodiclofen as an insecticide to control broad mite, carmine spider mite, flat mite, persea mite, sixspotted mite, Texas citrus mite, and twospotted spider mite on these crop areas.  The uses and relevant application information are summarized in Table 1.  

The previous assessment for spirodiclofen (DP barcode 300903, 293789, 284995, 309421; completed 3/9/05) and subsequent update memo (DP barcode 317317; completed 8/15/05) can be used in place of a new assessment for the currently proposed rate for the specified tropical fruits.  The previous assessment for tropical fruits (D361042) also relied on this assessment due to lower maximum seasonal application rates for tropical fruits relative to the uses under D300903+. 


Table 1. Use information for the proposed use of spirodiclofen as an insectide.  The use in bold represents the new use, whereas the other specified use has been previously assessed.
                                       
                                       
                                       
                                       
                                       
                                     Uses
                       Single application rate (lb ai/A)
                     Maximum application number per season
         Maximum application rate per season or year (lb ai/A/season)
                              Application methods
Tropical Fruit
(including avocado, black Sapote, canistel, mamey sapote, mango, papaya, sapodilla, star apple)
                                  0.28 - 0.31
                                       1
                                     0.31
                           Airblast, Aerial, Ground
Tropical Fruit
(including acerola, atemoya, biriba, cherimoya, custard apple, feijoa, jaboticaba, guava, ilama, longan, lychee, passionfruit, persimmon, pulasan, rambutan, soursop, Spanish lime, starfruit, sugar apple, wax jambu)
                                  0.28 - 0.31
                                       1
                                     0.31
                           Airblast, Aerial, Ground



