Population Density of Major Insect Pest as Influenced by Spatial Arrangement in Pechay
population density of major insect pest as influenced by spatial arrangement in pechay
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ABSTRACT
Spatial arrangement in pechay production could be used as an strategic pest management. Three different spacing were used to determine the effects of spatial arrangement in the population density of pechay. The spacing were 2.5 x 5 in, 3.5 x 5 in and 5 x 5 in per plant. Collections of insect pests were done starting five days after transplanting and continued every three days until harvest. Damage rating and yield were also measured. The spacing of 5 x 5 in per plant significantly affected the lowest incidence of insect pest, leaf damage and with highest yield. The 5 x 5 in spacing per plant in this study could thus help reduce incidence of insect pest and the use of chemical pesticides and promote organic production.
INTRODUCTION
Pechay (Pak Choi) is a cabbage. It is one of the most known vegetables in the Philippines. It is also knonw as one of the oldest green vegetables in Asia. The Pechay differs in many aspects from other cabbages. The leaves of the pechay vary in length from 10-30 cm the leaves are green and mild flavored and less crisp than other cabbages.
Pechay has a nutrient content ( 100 gms. Edible portion), has % moisture – 93.2, Ca (mg) – 16.8, food energy – 20, P (mg) – 3.5, protein – 2, Fe (mg) – 3.7, total carbohydrate – 3.2 and (vegetables manual)
Every plant has an ideal spacing. Crop spacing is the typical distance between adjacent plants for optimal use of space without sacrificing sunshine and water needs. The importance of using optimum spacing for high yields was emphasized in crop production.
Objectives of the study The study aimed to determine the population density of major insect pest as influenced by spatial arrangement in petchay. Specifically, the study aimed:
1. To determine the population density of the insect pest in the experimental site?
2. To measure the biological yield of petchay subjected in the various spatial
by
ABSTRACT
Spatial arrangement in pechay production could be used as an strategic pest management. Three different spacing were used to determine the effects of spatial arrangement in the population density of pechay. The spacing were 2.5 x 5 in, 3.5 x 5 in and 5 x 5 in per plant. Collections of insect pests were done starting five days after transplanting and continued every three days until harvest. Damage rating and yield were also measured. The spacing of 5 x 5 in per plant significantly affected the lowest incidence of insect pest, leaf damage and with highest yield. The 5 x 5 in spacing per plant in this study could thus help reduce incidence of insect pest and the use of chemical pesticides and promote organic production.
INTRODUCTION
Pechay (Pak Choi) is a cabbage. It is one of the most known vegetables in the Philippines. It is also knonw as one of the oldest green vegetables in Asia. The Pechay differs in many aspects from other cabbages. The leaves of the pechay vary in length from 10-30 cm the leaves are green and mild flavored and less crisp than other cabbages.
Pechay has a nutrient content ( 100 gms. Edible portion), has % moisture – 93.2, Ca (mg) – 16.8, food energy – 20, P (mg) – 3.5, protein – 2, Fe (mg) – 3.7, total carbohydrate – 3.2 and (vegetables manual)
Every plant has an ideal spacing. Crop spacing is the typical distance between adjacent plants for optimal use of space without sacrificing sunshine and water needs. The importance of using optimum spacing for high yields was emphasized in crop production.
Objectives of the study The study aimed to determine the population density of major insect pest as influenced by spatial arrangement in petchay. Specifically, the study aimed:
1. To determine the population density of the insect pest in the experimental site?
2. To measure the biological yield of petchay subjected in the various spatial