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HAWAII INSECT REPORT 



Corn - CORN EARWORM ( Heliothis zea ) larvae light, infested 20 percent of mature 

 ears, in 3 acres of field corn at Kaaawa, Oahu. Nymphs and adults of CORN 

 PLANTHOPPER ( Peregrinus ma idis ) moderate to heavy in 3 acres of corn at Kaawa. 

 Nymphs and adults of Cyrtorhinus lividipennis (a predacious mirid bug) trace 

 amid P. maidis . (Kawamura) . 



General Vegetables - BEAN FLY ( Melanagromyza phaseoli ) negligible in most 

 commercial snap bean plantings throughout Oahu . (Ma tayoshi , Kawamura). 

 CHINESE ROSE BEETLE ( Adoretus sinicus ) damage light to moderate in 0.5 acre 

 planting of ginger ( Zingiber officinale ) at Kahaluu, Oahu. BEET ARIWYWORM 

 ( Spodoptera exigua ) larvae generally trace to light in 5,000 square feet of 

 soybeans at Waimanalo, Oahu: heavy on some leaves. (Sugawa) . Larvae of 

 TOMATO PINWORM ( Keiferia lycopersicella ) and POTATO TUBERWORM ( Phthorimaea 

 operculella ) infested about 40 percent of leaves in 5,000 square feet of 

 eggplant at Pearl City, Oahu. Infestation severe 60 days previously with much 

 production loss. Larvae heavy and damaged 0.75 acre of tomato at Omaopio, 

 Maui. (Hori, Kawamura). 



Forest and Shade Trees - Larvae of a NOCTUID MOTH ( Me li pot is indomi ta ) several 

 hundred per tree at base of 10 kiawe ( Prosopis pa llida ) trees at Punahou, 

 Honolulu, Oahu. Light trap collections for October show decline. (Rose). 

 CUBAN LAUREL THRIPS ( Gyna ikothrips f icorum ) nymphs and adults lightly infested 

 5 percent of young terminal leaves on 30+ trees of Chinese banyan ( Ficus 

 retusa) trees at Punchbowl, Oahu: nymphs and adults of Mon tandoniola moraguesi 

 (an anthocorid bug) light also. Ratio of thrips to preda tor , 5:1. fKawamura) . 



Fruits and Nuts - Four adults of a LEAFHOPPER ( Protalebrella brasiliensis ) 

 taken in planting of wedelia at Kona , Hawaii; 23 taken from same host at 

 Lihue, Kauai, in April 1971. These are new island records. (Kawamura). 



Man and Animals - Trapped 94 VEXANS MOSQUITO ( Aedes vexans nocturnus ) and 

 894 SOUTHERN HOUSE MOSQUITO ( Culex pipiens quinquefascia tusl in 55 light traps 

 on Oahu during October. Aedes per trap ranged 0-20 at Kahaluu. Culex per trap 

 ranged 0-894 at Waipahu. (Mosq. Cont. Br., Oept. of Health). One adult of a 

 MUSCID FLY ( Musca sorbens ) taken at large at Hanapepe, Kauai, during August for 

 a new island record"! (Howar th) . 



Beneficial Insects - LANTANA LEAF BEETLE ( Octotoma scabr ipennis ) heavy in 

 wasteland lar.tana at Kona; as many as 5 mines in as much as 70-80 percent of 

 leaves. (Matayoshi). Light emergence of a EULOPHID WASP ( Aneris tus ceroplas tae ) 

 and an ENCYRTID WASP ( Aphycus mexicanus ) from passionfruit vines heavily 

 infested with Ceroplas tes cirripedif ormis (barnacle scale) collected at 

 Kahului, Maui, in early October. (Kawamura) . An ICHNEUMON WASP ( Diadegma 

 insularis ) parasitized larvae and pupae of DIAMONDBACK MOTH ( Plutella 

 xylostella) on Hawaii. D. insularis introduced from Kenya in 1953 to control 

 P. xylostella . (Matayoshi) . The BRACONIDS ( Opius phaseoli and O. importatus ) 

 ¥nd a PTEROMALID WASP ( Hal t icoptera pa tellana ) completely parasitized 

 Melanagromyza phaseoli (bean fly) In cowpeas and snap beans collected from six 

 field locales on Kauai. On Maui, infested yardlongbean material collected at 

 '"'■kapu 100 percent parasitized. (Sugtiwa , Miyahira). A TACHINA FLY 

 ( Eucela toria armigera ) and an ICHNEUMON WASP ( Casinaria infesta ) , 23 percent 

 each, parasitized Herpe togramma licarsisa lis (grass webworm) Tarvae collected 

 from lightly infested pangola grass pasture at Hanalei, Kauai, in late September, 



Miscellaneous Pests - Collected 245 dead or dying specimens of GIANT AFRICAN 

 SNAIL ( Achatina fulica ) during October at Poipu, Kauai. Negative at Wahiawa. 

 Poison bait applications continue. On Hawaii, no live snails detected during 

 October. (Sugawa, Yoskioka) . Collected 36+ adults of a CADDISFLY ( Cheuma topsyche 

 analis) in light trap at Hilo, Hawaii, for a new island record. C. analis 

 previously reported only from Oahu and Molokai Islands. (ShiromaT. 



