Pesticide Information

MRLs

The California Citrus Quality Council http://www.calcitrusquality.org/ has an MRL database that you can search to find out the maximum residue limits on pesticides accepted by international trading partners. 

Managing Pesticide Resistance

This link provides a Table of Citrus Pesticides used for pests of California citrus classified by their mode-of-action (In part from IRAC [Insecticide Resistance Action Committee], Sept. 2005, www.irac-online.org). To avoid selecting for resistance in citrus pests, use a pesticide from a different group every time you treat during the season.

New Pesticides

2010 Pesticide Registrations

Altacor (rynaxypyr) - Insecticide (group 28)
(This is a summary, please see the product label and supplemental label for more details)
Altacor
Pests Controlled: citrus leafminer and citrus peelminer.
Dosage:  3-4.5 oz formulated product/acre.  
Method of Application:  Apply by ground using sufficient water to obtain coverage in a minimum of 30 gallons for concentrate or 100 gallons for dilute spray.     Do not apply more than 9 oz of product per season.  Do not make applications less than 14 days apart.     
Timing of application: Early stages of pest activity.
REI: 4 hours
PHI: 1 day

Mustang (zeta-cypermethrin) - Insecticide (group 3)
(This is a summary, please see the product label and supplemental label for more details)
Mustang
Pests Controlled: Katydid, worms, psyllids, sharpshooter, grasshopper.
Dosage:  4.3 oz formulated product/acre.  
Method of Application:  Apply by ground using sufficient water to obtain coverage in a minimum of 20 gallons for concentrate or 100 gallons for dilute spray.  Apply by air in a minimum of 10 gallons per acre.   Do not apply more than 17.2 oz of product per season.  Do not make applications less than 14 days apart.     
Timing of application: Early stages of pest activity.
REI: 12 hours
PHI: 1 day

Platinum 75 SG (thiamethoxam) - Insecticide (group 4A)
(This is a summary, please see the product label and supplemental label for more details)
Platinum
Pests Controlled: Aphids, citrus leafminer, Asian citrus psyllid
Dosage:  1.83-3.67 oz formulated product/acre.  
Method of Application:  Chemigation: apply into the root zone through low pressure drip, trickle, micro-sprinkler or other equipment. After the application apply sufficient water to thoroughly wet the root zone. Do not exceed a total of 3.67 oz/Acre per growing season.   Highly toxic to bees exposed to direct treatment.  Do not apply during pre-bloom or bloom when bees are foraging.  Wait 5 days before placing beehives in the treated field.      
Timing of application: Early stages of pest activity, to allow time for systemic movement of the chemical within the plant.
REI: 12 hours
PHI: 0 day

2008 Pesticide Registrations

Movento (spirotetramat) - Insecticide (group 23)
(This is a summary, please see the product label and supplemental label for more details)
Movento
Pests Controlled: Aphids, citrus thrips, California red scale
Dosage:  8-10 oz formulated product/acre.  
Method of Application:  For aphids and citrus thrips use the low rate and 100 gpa.  For California red scale use the higher rate and 500 gpa.   Movento is not effective for California red scale when applied at citrus thrips treatment timing (petal fall) and when targeting this scale should be used prior to the 2nd or 3rd generation of crawler activity.  Movento must be tank-mixed with a spray adjuvant with spreading and penetrating properties to maximize leaf uptake and systemic action.   Allow 21 days between applications with a maximum of 20 oz per season.    
Timing of application: Early stages of pest activity, to allow time for systemic movement of the chemical within the plant.
REI: 24 hours
PHI: 1 day

2007 Pesticide Registrations

Delegate (spinetoram) - Insecticide (group 5)
(This is a summary, please see the product label and supplemental label for more details)
Delegate WG
Pests Controlled: Citrus thrips, katydid, various Lepidopteran larvae
Dosage:  3-6 oz formulated/acre.  
Method of Application:  For best results use 100-200 gpa.   Do not apply more than 12 oz per season or 3 applications per year.  Allow 7 days between applications.  For resistance management purposes do not make more than 2 consecutive applications of group 5 insecticides (Success is also a group 5 insecticide).  To delay resistance in citrus thrips, do not apply to citrus nurseries or citrus in greenhouses.  
Timing of application: When pests reach treatment thresholds.
REI: 4 hours
PHI: 1 day

Fujimite (fenpyroximate) - Miticide/Insecticide (group 21)
(This is a summary, please see the product label and supplemental label for more details)
Fujimite 5 EC
Pests Controlled: Citrus rust mite, Asian citrus psyllid, other mites, leafhoppers and mealybugs
Dosage:  1-4 pints formulated/acre.  
Method of Application:  For best results use 100-400 gpa.   Do not apply more than 2 times per season or apply more than 8 pints/acre per season.  Allow 14 days between applications.  Do not apply by air.
Timing of application: When pests reach treatment thresholds.
REI: 12 hours
PHI: 14 days

Zoro (abamectin) - Miticide/Insecticide (group 6)
(This is a summary, please see the product label and supplemental label for more details)
Zoro Miticide/Insecticide
Pests Controlled: Broad mite, citrus bud mite, citrus rust mite, two-spotted spidermite, citrus leafminer, citrus thrips, Asian citrus psyllid
Dosage:  10-20 oz formulated/acre .  
Method of Application:  For best results use 150-300 gpa with a minimum of 0.5% horticultural oil.  To manage resistance, do not use in citrus nurseries.  Do not apply more than 1 time per season or apply more than 20 oz per season.
Timing of application: When pests reach treatment thresholds.
REI: 12 hours
PHI: 7 days

Envidor (spirodiclofen) - Miticide - lipid biosynthesis inhibitor (group 23)
(This is a summary, please see the product label and supplemental label for more details)
Envidor 2 SC Miticide
Pests Controlled: Citrus flat mite, citrus red mite, Texas citrus mite, Two-spotted spider mite, Yuma spider mite
Dosage:  12-20 oz formulated/acre without horticultural oil and 18-20 oz/acre with oil.  
Method of Application:  If applied by airblast use a minimum of 100 gpa.  If applied using high air velocity, low volume or air curtain sprayers use a minimum of 30 gpa.  Do not apply more than 20 oz per season or more than one application per crop season.  Can not be used in enclosed structures such as greenhouses.
Timing of application: When mites reach treatment thresholds.
REI: 12 hours
PHI: 7 days

2006 Pesticide Registrations

Onager (hexythiazox) - Miticide - ovicide (group 10)
(This is a summary, please see the product label and supplemental label for more details)
Onager EC Miticide
Pests Controlled: spider mites such as citrus red mite, Texas citrus mite, Two-spotted spider mite, Yuma spider mite
Dosage:  12-24 oz formulated/acre.  
Method of Application:   Do not apply more than 24 oz per season or more than one application per crop season. 
Timing of application: Apply prior to mite buildup.  Onager will not control adult mites.  If adult mites are present in medium to high densities then Onager is best applied in combination with a registered contact adulticide. 
REI: 12 hours
PHI: 7 days

2005 Pesticide Registrations

Applaud (buprofezin) - insect growth regulator, chitin synthesis inhibitor (group 16)
(This is a summary, please see the product label and supplemental label for more details)
Applaud 70DF (new formulation)
Pests Controlled: California red scale, cottony cushion scale, citricola scale 
Dosage:  2.14-2.86 lb = 35-46 oz (1.5-2 lb ai) per acre.  
Method of Application:  Apply by ground application using 750-2000 gallons of water per acre.  Do not apply more than 2 applications per season.  Allow at least 60 days between applications.
Timing of application: Apply when peak crawler emergence occurs.  More effective at the beginning of the season when the population is fairly uniform.
REI: 12 hours
PHI: 3 days

Kanemite (acequinocyl) - Miticide (group 20)
(This is a summary, please see the product label and supplemental label for more details)
Kanemite 15 SC
Pests Controlled: citrus red mite, Texas citrus mite
Citrus Varieties: oranges, grapefruit, and lemons
Dosage: 21-31 oz per acre
Method of Application: Apply by ground using 100-250 gallons of water per acre.  Do not use less than 100 gallons of water per acre.  Do not apply more than 62 oz per acre per season or 2 applications per year.  Allow a minimum of 21 days between applications. 
REI: 12 hours
PHI: 7 days

2003 Pesticide Registrations

Micromite (diflubenzuron) - insect growth regulator (group 15)
(This is a summary, please see the product label and supplemental label for more details)
Micromite 80WGS
Pests Controlled: citrus leafminer, citrus peelminer, katydid
Citrus Varieties: oranges, grapefruit, tangerines and pummelos
Dosage:  6.25 oz per acre 
Method of Application:  Apply by ground application using 100-1000 gallons of water per acre to ensure thorough coverage.  Do not apply more than 18.75 oz per acre per season.   Do not apply within 25 feet of bodies of water.  The addition of spray oil enhances coverage.  Protection against peelminer may last only a few weeks when new tissue is exposed on rapidly expanding fruit.  Most effective on young katydids. 
Timing of application:  Micromite has activity on the egg stage of peelminer and the nymph stage of katydids.
REI: 12 hours
PHI: 21 days

2002 Pesticide Registrations

Assail (acetamiprid) - neonicotinoid (group 4)
(This is a summary, please see the product label and supplemental label for more details)
Assail 70 WP
Pests Controlled: Glassy-winged sharpshooter and citricola scale 
Dosage:  1.7-2.9 oz per acre (.07-.13 lbs AI) for GWSS and 3.4-5.7 oz per acre (.15-.25 lb AI) for citricola scale.  
Method of Application:  Apply by ground application using 100-200 gallons of water per acre for GWSS and 300-750 gallons water per acre for citricola scale.  Do not apply more than 5 applications or at most 12.5 oz per acre per season.  Allow at least 7 days between applications.
Timing of application: Apply when GWSS nymphs and adults are present.  Apply March-October for citricola scale, however, it is most effective in the fall when the population consists of small nymphs on leaves.
REI: 12 hours
PHI: 7 days

Applaud (buprofezin) - insect growth regulator, chitin synthesis inhibitor (group 16)
(This is a summary, please see the product label and supplemental label for more details)
Applaud 70 W 
Pests Controlled: California red scale 
Dosage:  2.14-2.86 lb (1.5-2 lb ai) per acre.  
Method of Application:  Apply by ground application using 750-2000 gallons of water per acre.  Do not apply more than 2 applications per season.  Allow at least 60 days between applications.
Timing of application: Apply when peak crawler emergence occurs.  More effective at the beginning of the season when the population is fairly uniform.
REI: 24 hours
PHI: 60 days

2001 Pesticide Registrations

Admire (Imidacloprid) - neonicotinoid (group 4)
(This is a summary, please see the product label and supplemental label for more details)
Admire 2 Flowable 
Pests Controlled: California red scale, glassy-winged sharpshooter
Dosage:  32 fluid ounces of product (0.5 lb ai) per acre.  Do not apply more than 1 quart of product per acre per year.
Method of Application:  For optimum uptake of Admire 2 Flowable, apply to trees either newly planted or trees previously trained to drip / microsprinkler / low pressure irrigation.  Emitters must provide even, uniform distribution of water.  Soil should be lightly prewetted (several hours) to break soil  surface tension prior to application of Admire 2 Flowable.  Once the irrigation system reaches operating pressure, the Admire 2 Flowable solution should be injected into the system over a calculated time interval (generally 2 hours) to allow uniform distribution throughout the system.  The use of a dye marker in the solution is recommended to determine when lines are clear of Admire 2 Flowable.  Once the solution has cleared all irrigation lines and emitters, continue irrigation to move the insecticide to the active root zone but do not over irrigate or cause runoff.  Wait 24 hours before subsequent irrigations.  
Timing of application:
California red scale: apply to the soil during May-July.  Uptake is poor during winter months and because of bee toxicity Admire can not be applied during bloom (April).  
Glassy-winged sharpshooter: Apply in citrus orchards May-July.   Admire will take 3-4 weeks to begin to kill the sharpshooter nymphs and adults.
PHI: 24 hours
REI: 24 hours

Provado (Imidacloprid) - neonicotinoid (group 4)
(This is a summary, please see the product label and supplemental label for more details)
Provado 1.6 Flowable
Pests Controlled: Citricola scale
Dosage: 10-20 fluid ounces of product (0.125-.25 lb ai) per acre.  Do not apply more than 20 oz of product per acre per year.
Method of Application: Apply as a foliar treatment in sufficient water (250-500 gal/acre) to cover citrus where citricola scale is found. sufficient  Timing of application:
Citricola scale: apply to the foliage during August-September.  The higher rate (20 oz) lasts longer than the lower rate and works better against a heavy infestation.
PHI: 24 hours
REI: 24 hours

Danitol (fenpropathrin) - pyrethroid (group 3)
(This is a summary, please see the product label for more details)
Danitol 2.4 EC
Pests Controlled: Glassy-winged sharpshooter, citrus thrips
Dosage: 21-1/3 fluid ounces of product (0.4 lb ai) per acre.  Do not apply more than 21-1/3 oz of product per acre per year.
Method of Application: Apply with airblast equipment as concnetrate of dilute spray to give outside coverage (50-200 gal/acre).  Use only on citrus trees 3 years or older.  To reduce the potential for resistance, only one pyrethroid should be applied per year.  Do not apply in the vicinity of aquatic areas.  
Timing of application:
Glassy-winged sharpshooter:  Apply when pest activity is noted.
Citrus thrips: Apply when immature thrips activity on fruit is noted.
PHI: 24 hours
REI: 24 hours