- 714 - 



HAWAII INSECT REPORT 



Corn - All stages of TUMID SPIDER MITE (Tetranychus tumidus ) moderate to heavy 

 in 1.5 acres of sweet corn at Waialua, Oahu; 50 percent of leaves (mostly older 

 leaves) infested. As many as 250 nymphs and adults and 200+ eggs per square inch 

 on infested leaves. All stages trace in adjoining 3 acres of 12-inch tall 

 seedlings; trace in large planting of same crop at Pupukea. CORN EARWORM 

 (Heliothis zea ) larvae trace in 1.5 acres each of sweet corn and tomatoes at 

 Waialua, Oahu; less than 5 percent of corn ears and tomato fruits affected. 

 (Kawamura) . 



Turf, Pasture - GRASS WEBWORM (Herpetogramma licarsisalis ) larvae generally 

 light in 50 acre pasture of pangola grass COigitaria decumbens) at Hanalei, 

 Kauai; as many as 13 (average less than 5) per square foot. Adults trace. Larvae 

 held for observation of parasite activity. Larvae in this pasture during summer 

 of 1969 extremely heavy in some paddocks. (Sugawa) . 



Fruits and Nuts - Parasitism of a SWALLOWTAIL BUTTERFLY (Papilio xuthus ) eggs by 

 Trichogramma sp. (a minute egg parasite) increased since first field parasitism 

 observed in early September. On Oahu, field collected eggs parasitized as 

 follows: 12 of 15 at Waipahu (80 percent); 20 of 21 at Ewa (95 percent) and 3 

 of 3 at Waialee. Sightings of adult P. xuthus declined in most areas past 14 

 days. (Kumashiro et al.). COCONUT SCALE (Aspidiotus destructor ) generally light 

 to moderate at Keehi Lagoon Beach Park and Hawaiian Memorial Park, Oahu. Moderate 

 colonies on about 10 percent of pinnae on 40 percent of fronds at both areas. 

 Nymphs and adults of Telsimia nitida (a lady beetle) light on infested pinnae 

 at Keehi Lagoon Beach Park. Generally light in small hedge planting of mockorange 

 (Murraya paniculata ) at Kaneohe; moderate on few branches with 25 percent of 

 leaves (lower surface) completely covered with scales. (Wong, Kawamura). 



Forest and Shade Trees - Nymphs and adults of a CONIFER APHID (Cinara Carolina ) 

 light on terminals of several Pinus sp. at Princeville, Hanalei, Kauai. Generally 

 trace in 20 acres of Pinus taeda at Olinda, Maui; less than 1 percent of trees 

 infested. (Sugawa, MiyahiraT^ 



Beneficial Insects - Larvae of a CACTUS MOTH (Cactoblastis cactorum ) moderate in 

 200 acres of cactus at Kekaha, Kauai; about 10 percent of pads infested. C. 

 cactorum purposely introduced from Australia in 1950 to control cactus on Hawaii 

 Island. (Sugawa) . 



DETECTION 



New State Record - ASPARAGUS APHID (Brachycolus asparagi ) - DELAWARE - Kent 

 County, (p. 709) . 



New County Records - AN APHID (Panaphis juglandis ) CALIFORNIA - Contra Costa 



(p. 710). ASIATIC OAK WEEVIL (Cyrtepistomus castaneus ) ALABAMA - Jackson (p. 711), 



A PUNCTUREVINE SEED WEEVIL (Microlarinus lareynii) OKLAHOMA - Grady, Payne 



(p. 712). TULIPTREE SCALE (Toumeyella liriodendri ) CALIFORNIA - Soma (p. 712). 



WESTERN CORN ROOTWORM (Diabrotica virgifera ) WYOMING - Natrona (p. 706). A 



WHITEFRINGED BEETLE ( Graphognathus~T.eucoloma striatus ) ARKANSAS - Woodruff; 



NORTH CAROLINA - Orange (p. 713). 



