Rhynchophorus palmarum - 2011-10-19 00:00:00

South American palm weevil - Rhynchophorus palmarum

EEffective: October 19, 2011 - June 28, 2012

Resources: Pest Tracker CAPS Pest Datasheet

Screening Aids:

Rhynchophorus spp. - Palm Weevils Screening Aid

Taxonomic Position: Coleoptera : Curculionidae

Pest Type: Insects

Pest Code (NAPIS): INASHTA

No manual – See Host Matrix

These Approved Methods are appropriate for:

Major Hosts identified in the Host Matrix:

New World palm/Palmetto; Palm (coconut palm, oil palm, etc.); Sugarcane

This list includes important economic or environmental hosts but does not represent all major hosts of the pest. Check CAPS pest datasheet for complete list of hosts.

Human and Animal Pathogens Transmitted:

Not known to transmit any human or animal pathogens.

Plant Pathogens and Organisms Vectored:

This species vectors the nematode, Bursaphelenchus cocophilus (formerly Rhadinaphelenchus cocophilus).

Survey

Approved Method(s):

Method	Product Name / Instructions	NAPIS Survey Method
Trap	26 - Palm Weevil Bucket Trap	3001 - General Trapping Procedure
Trap	23 - Homemade 5-Gallon Bucket Trap	3001 - General Trapping Procedure
Visual	See the CPHST pest datasheet for detailed survey instructions.	3031 - General Visual Observation

Method Notes:

Visual surveys may be used to detect larval populations before adults emerge. A trap and lure combination may be used to detect adult populations. See the CPHST Pest Datasheet for survey instructions. See USDA (2010) for instructions on making a Home-made 5 gallon bucket trap.

Approved Lure(s):

NAPIS Code	Product Name	Dispenser	Effectiveness	Compound(s)
110	Rhynchophorus palmarum Aggregation Lure	polysleeve	42 days	rhynchophorol
	Palm Weevil Lure, Ethyl Acetate	polysleeve	42 days	ethyl acetate
	Food bait (Rhynchophorus spp.)	N/A	7 days	sugar cane cut apples palm pieces 10% molasses containing 1 tsp baker's yeast

Lure Notes:

At the present time, it appears that placing pheromones for both R. ferrugineus and R. palmarum, the South American Palm Weevil, in the same trap is an acceptable practice. Therefore, if both pests are targets, the trap should be baited with the pheromone lures for R. ferrugineus and R. palmarum, ethyl acetate, and the food bait. See USDA (2010) for survey instructions on making the Homemade 5-gallon bucket trap.

Identification

ID/Diagnostic: Morphological

Morphological. Identification should be verified by an identifier with expertise in the Rhynchophorus genus. A microscope with x50 magnification is needed.

Mistaken Identities:

Rhynchophorus ferrugineus and R. cruentatus (native to the southeastern United States)

References