- 675 



HAWAII INSECT REPORT 



Corn - CORN LEAF APHID (Rhopalosiphum maidis ) nymphs and adults light in 30 acres 

 of seed corn at Kilauea, Kauai. (Sugawa) . 



Turf and Pasture - GRASS WEBWORM (Herpetogranuna licarsisalis ) larval infestation 

 trace in Kikuyu and Bermuda grasses at memorial parks and golf course fairways 

 at Kaneoke, Oahu; less than one larva per square foot; adults nil. Light trap 

 collections indicate light increase. (Kawamura) . 



General Vegetables - BEAN FLY (Melanagromyza phaseoli ) light in small planting of 

 long beans at Waimanalo, Oahu; 9 adults emerged from 22 infested petioles; 

 parasites nil. Infestation severe in 0.1 acre of snap bean seedlings at Waimanalo, 

 Oahu; 100 percent of seedlings with signs of larval infestation; adults trace, 

 less than one per leaf. Infestation trace in 0.1 acre of same crop in adjacent 

 field. Infested material held for observation. BLACK SCALE (Saissetia oleae ) 

 infestation heavy in backyard plantings of bittermelon (Momordica charantia ) at 

 Ewa, Oahu; many vines severely affected. Numerous larvae of Azya luteipes (a 

 lady beetle) preying on scales. Three adults of MEMBRACID BUG (Antianthe expansa ) 

 collected from small backyard planting of tomato at Ewa, Oahu. Reported on 

 tomatoes in California; this is first record on tomato in Hawaii. All stages of 

 LEAF MINER FLIES (Liriomyza spp.) heavy in . 5 acre of cucumber seedlings at 

 Wailua, Kauai. Mines moderate on 50 percent of leaves in 0.2 acre of snap beans 

 at Waimanalo, Oahu; adults trace, less than 1 per leaf. (Ikehara, Kawamura). 



Fruits and Nuts - Several larvae of a SWALLOWTAIL BUTTERFLY (Papilio xuthus ) 

 feeding on leaves of Triphasia trifoliata at Kuliouou, Oahu. This is first 

 Hawaiian record on this host. According to literature apparently predominant host 

 on Guam. Two eggs of P. xuthus collected from citrus leaves at Foster Village, 

 Oahu parasitized by Trichogramma sp. (a trichogrammatid wasp) ; first record of 

 field parasitism of this pest in Hawaii. Of 62 eggs collected in this area, 43 

 found parasitized. (Kahale, Kumashiro) . Larvae and adults of ORCHID WEEVIL 

 (Orchidophilus aterrimus ) moderate in backyard collection of Phalaenopsis orchid 

 plants; about 15-20 percent of 350 plants severely affected by feeding. Adults 

 trace in small orchid nursery at Aina Haina, Oahu; 7 adults collected from young 

 Dendrobium shoots. (Miyahira, Kawamura). 



Man and Animals - Trapped 234 VEXANS MOSQUITO (Aedes vexans nocturnus ) and 2,176 

 SOUTHERN HOUSE MOSQUITO (Culex pipiens quinquef asciatus ) in 54 light traps on 

 Oahu during August. Aedes per trap ranged from none to high of 208 at Kahaluu. 

 Culex per trap ranged from none to high of 1,000 at Honouliuli. (Mosq. Contr . 

 Br., Dept. of Health). 



Beneficial Insects - On Kauai, field examination of Indian rhododendron (Melastoma 

 malabathricuiii ) fruits infested 20 and 6 percent respectively at Hanahanapuni and 

 Knudsen Gap by MELASTOMA BORER (Selca brunella ) . (Sugawa) . 



Miscellaneous Pests - Specimens of GIANT AFRICAN SNAIL (Achatina fulica ) 

 collected and destroyed numbered 50+ at Kahaluu, Kona, Hawaii during August. 

 Snail activity during most of summer at this site practically nil; poison bait 

 applications initiated, (Yoshioka) . 



