Abai, MR

More documents

Recommendations

Info

6th International Congress of Dipterologyundescribed species to consider the evolution of host plant utilizationpattern within this genus, using molecular phylogenetic analyses based onsequences of the mitochondrial 16S and COI genes.Key Words: Asphondylia, axillary bud gall, Weigela, weevil, cecidophagy∗∗∗∗∗∗∗∗∗∗324
6th International Congress of DipterologyEffects of early abscission of galled organs on populationdynamics of gall midge species (Diptera: Cecidomyiidae)Yukawa, J. (1), K. Nakagawa (2), A. Kono (3), T. Maki (4), T. Sadoshima (5), T.Yamaguchi (6) & T. Satonaka (7)(1) Kyushu University, Hakozaki, Fukuoka 812-8581, Japan(2) Kawanabe Agricultural Improvement and Advisory Center, Kagoshima Prefecture,Minami-Satsuma 897-1121, Japan(3) Aira Agricultural Improvement and Advisory Center, Kagoshima Prefecture, Kajiki899-5212, Japan(4) Sankei Chemical Co., Ltd., Higashi-Ueno, Tokyo 110-0015, Japan(5) Fukuoka Sub-Station, Moji Plant Protection Station, Fukuoka 812-0031, Japan(6) National Agricultural Research Center, Tsukuba, Ibaraki 305-8666, Japan(7) Nagasaki Agricultural and Forestry Experiment Station, Isahaya 854-0063, JapanIn order to find regulation mechanisms of gall midge population density,we have been studying, since 1970, population dynamics of severalunivoltine gall midge species (Diptera: Cecidomyiidae) that inhabit forestsof broad-leaved evergreen trees in southern parts of Japan. In various gallmidge–host plant systems, we observed that early abscission of galledorgans affected gall midge populations density-dependently in some casesand density-independently in other cases. The longevity of heavily galledleaves was shortened in the systems of Pseudasphondylia neolitseae–Neolitsea sericea (Lauraceae), Illiciomyia yukawai–Illicium anisatum(Illiciaceae), and Masakimyia pustulae–Euonymus japonicus(Celastraceae). Such an earlier drop of galled leaves operated as a densitydependentmortality factor on the gall midge populations. In contrast,heavily galled leaves did not drop earlier than ungalled leaves in thesystems of Daphnephila machilicola–Machilus thunbergii (Lauraceae) andLasioptera camelliae–Camellia japonica (Theaceae) because of toughnessof the host leaves. Some galled and ungalled leaves of Elaeocarpussylvestris (Elaeocarpaceae) naturally drop to the ground a little before theemergence season of Pseudasphondylia elaeocarpini, which causes thedeath of the gall midge when the fall of galled leaves occurred beforepupation. In the system of Asphondylia sphaera–Ligustrum japonicum(Oleaceae), abortion of flower buds and young fruit caused the death of the325
Page 2 and 3:
6th INTERNATIONAL CONGRESS OFDIPTER
Page 6 and 7:
6th International Congress of Dipte
Page 8 and 9:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
Page 245 and 246:
Page 247 and 248:
Page 249 and 250:
Page 251 and 252:
Page 253 and 254:
Page 255 and 256:
Page 257 and 258:
Page 259 and 260:
Page 261 and 262:
Page 263 and 264:
Page 265 and 266:
Page 267 and 268:
Page 269 and 270:
Page 271 and 272:
Page 273 and 274:
Page 275 and 276:
Page 277 and 278: 6th International Congress of Dipte
Page 327: 6th International Congress of Dipte
Page 359: 6th International Congress of Dipte
show all

Abai, MR

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?