Washington Effects 

 Beetle Quarantine 



Reprinted from AAN Update, 

 October 1, 1990 



A Washington State Japanese 

 beetle quarantine is in effect. 

 Regulated states are Alabama, 

 Connecticut, Delaware, Georgia, 

 Illinois, Indiana, Kentucky, Maine, 

 Maryland, Massachusetts, Michi- 

 gan, Missouri, Nebraska, New 

 Hampshire, New Jersey, New 

 York, North Carolina, Ohio, Penn- 

 sylvania, Rhode Island, South 

 Carolina, Tennessee, Vermont, 

 Virginia, West Virginia, Wisconsin, 

 District of Columbia, and the 

 Provinces of Quebec and Ontario. 

 Individual countries verified to be 

 free of Japanese beetle may be ex- 

 empted. Regulated articles include 

 all plants with roots (except bare 

 root plants free from soil); soil, hu- 

 mus, compost, and manure (except 

 commercially packaged); grass sod; 

 plant crowns or roots (except free 

 from soil); bulbs, corms, tubers, 

 rhizomes (except free from soil). 

 Arizona, California, Nevada, and 

 Oregonenforcesimilarquarantines 

 in an effort to prevent establish- 

 ment of the beetle. For information, 

 contact Washington State Depart- 

 ment of Agriculture, Plant Services 

 Division: (206) 586-5306. 



FACTS ABOUT THE JAPANESE BEETLE 



Excerpted from an article by Miles 

 McCoy in the August 1990 Digger 



The Japanese beetle (Popillia ja- 

 ponica ) was first introduced into 

 this country in New Jersey in 1916 

 and has now spread throughout 

 most of the eastern United States. 

 Both the adult and larval forms can 

 cause serious damage to many 

 types of plants — the Oregon De- 

 partment of Agriculture estimates 

 this pest feeds on more than 300 

 species of woody and herbaceous 

 plants. The rose family is a favor- 

 ite. The feeding grubs can damage 

 large areas of turf. 



It is easily transported on plant 

 materia] and can accidentally be 

 carried in planes, autos, and other 

 vehicles. The larvae (grub) are most 

 easily transported in soil sur- 

 rounding plant roots. 



Identification. The bright metal- 

 lic-green Japanese beetle adults are 

 oval-shapea, measuring 3/8 to 1/2" 

 long. Their wing covers are copper 

 or reddish-bronze. Two small tufts 

 of hair occur just behind the wing 

 covers; five patches of hair are also 

 along each side. The larvae look 

 like many other insect grubs found 

 in the soil. Their bodies are 

 C-shaped and creamy-white with 

 darker rear ends. A full-grown grub 

 is about 1 1/8" long. 



Life Cycle. In most regions, the 

 Japanese beetle cornpletes only one 

 life cycle a year. This makes its 

 control a little easier. 



Adults start appearing in mid-June 

 with peak emergence in July and 

 August. Following emergence, the 

 adults mate and the females soon 

 start laying eggs in the soil. The 

 eggs hatch in about two weeks and 

 the young grubs begin feeding on 

 roots, similar to root weevils. They 

 continue to feed until fall. The 

 grubs then over winter in the soil 

 within about five inches of the soil 

 surface. The following spring, they 

 resume feeding until fully grown. 

 They then form a 'pupa', or resting 

 stage, from which the adult form 

 emerges. The adult lives for about 

 30-45 days. 



Control. Dr. Stan Swier, Exten- 

 sion Entomologist at UNH, sug- 

 gests Ofanol, a granular powder 

 that can be broadcast on lawns, for 

 use against Japanese beetles in 

 their grub stage. Seven is effective 

 against adults. Multiple sprayings 

 may be required. Both these mate- 

 rials can be bought over the coun- 

 ter. There are more powerful in- 

 secticides available, but these are 

 better for use near homes or on 

 plants that will be handled by cus- 

 tomers. 



J. B. CARPENTER & SON, INC. 



— Olde English Greenhouses 



220 South Main Street — hev^market, MH 03857 — (603) 659-3391 



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JOHN B. CARPENTER, President — ROBERT J. CARPENTER, General Manager 



December/January 11 



