赤葉蟎(Tetranychus cinnabarinus Boisduval)在茄園之分布及最適取樣數之估測
Other Title
Distribution and Estimates of the Optimal Sample Size of Tetranychus cinnabarinus (Acari: Tetranychidae ) on Eggplant
Journal
中華昆蟲
Journal Volume
13
Journal Issue
2
Pages
125-140
Date Issued
1993-06
Author(s)
何琦琛
陳文華
程建中
Chyi-Chen Ho
Wen-Hwa Chen
Chien-Chung Cheng
Abstract
在茄株上採取嫩葉、中葉、老葉各一片，調查其上之赤葉蟎數量，以老葉上最多，約占總數之62%，中葉上約占31%，嫩葉上約占7%。樣品平均葉蟎數三葉片之葉蟎總和對老葉上葉蟎數之直線迴歸，其R2=0.925；而茄株上之葉片有近30%為老葉。是以調查茄園葉蟎時，老葉為很好之取樣部位。老葉上之葉蟎近 8% 為雌成蟎，60% 為卵，其餘之個體約占32%。
Tetranychus cinnabarinus Boisduval on eggplant was sampled from on each of young, mid-aged, and old leaves per plant. Most spider mites, 62% , were on the old leaves, the mid-aged leaves contained 31%, and 7% were on the young leaves. Linear regression of the number of mites sampled per plant against the number of mites on old leaves gave R2=0.925. Nearly 30% of leaves on an egg plant were old. The old leaves are therefore a good site to sample spider mites on eggplant. For spider mites on old leaves, 8% were adult females, 60% were eggs, and the rest (adult males + young individuals) formed 32%.
Subjects
茄子
赤葉蟎
分布
分散型
eggplant
carmine spider mite
distribution
dispersion pattern
Publisher
中華昆蟲學會
Type
journal article