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With advances in agro-technology, cucurbits are now being grown
throughout the year. However, they are prone to biotic and abiotic
stresses resulting in significant yield loss. Sustainable
management of such stresses is a complex issue in the intensive
cultivation of cucurbits involving high levels of fertilization and
irrigation. Further, under the changing climatic conditions, pest
scenarios vary constantly, with invasive alien species of pests
becoming more common as a result of free trade and frequent
international travel. As such, agrochemicals are being used as
powerful weapons to combat the increasing number of pests and
diseases. Lack of proper crop management technologies, inaccurate
diagnosis, and indiscriminate and excessive use of pesticides are
major causes of pesticide resistance and resurgence, environmental
pollution, and hazards to the non-target biota. This comprehensive
book provides essential insights into the management of biotic and
abiotic stresses in cucurbit cultivation and re-evaluating the role
of agrochemicals, and gathers information on insect pests, mites,
nematodes, diseases and weeds, as well as on their sustainable
management from scattered sources. Written in language that is easy
to understand and including high-quality photographs, it is a
valuable resource for students, researchers, plant protection
specialists, extension workers, and growers.
With advances in agro-technology, cucurbits are now being grown
throughout the year. However, they are prone to biotic and abiotic
stresses resulting in significant yield loss. Sustainable
management of such stresses is a complex issue in the intensive
cultivation of cucurbits involving high levels of fertilization and
irrigation. Further, under the changing climatic conditions, pest
scenarios vary constantly, with invasive alien species of pests
becoming more common as a result of free trade and frequent
international travel. As such, agrochemicals are being used as
powerful weapons to combat the increasing number of pests and
diseases. Lack of proper crop management technologies, inaccurate
diagnosis, and indiscriminate and excessive use of pesticides are
major causes of pesticide resistance and resurgence, environmental
pollution, and hazards to the non-target biota. This comprehensive
book provides essential insights into the management of biotic and
abiotic stresses in cucurbit cultivation and re-evaluating the role
of agrochemicals, and gathers information on insect pests, mites,
nematodes, diseases and weeds, as well as on their sustainable
management from scattered sources. Written in language that is easy
to understand and including high-quality photographs, it is a
valuable resource for students, researchers, plant protection
specialists, extension workers, and growers.
Chickpea (Cicer arietinum L.) the most common pulse crop, is
exposed to attack by many insect pests, amid them Helicoverpa
armigera is the major limiting factor for higher yield of the crop.
Thereby a field experiment has been carried out to develop an
effective pest management strategy for the crop. Side by side a
laboratory experiment has also been conducted to study the growth
and development of 3rd instar larvae of H. armigera along with the
level of parasitization at natural condition. The finding revealed
no significant difference in mean larval length, larval and pupal
phases as well as pupal weight in different chickpea cultivars. The
varietal screening for both years of the study revealed that BG-256
was less vulnerable to H. armigera. The efficacy of different
bio-pesticides was evaluated against H. armigera in chickpea. The
larval population was significantly lower in spinosad 2.5 SC @ 0.5
ml/l. The field experiment on the relative ability of various
insecticides against H. armigera revealed that indoxacarb 14.5 SC @
0.5 ml/l as the most effective one. Intercropping chickpea with
linseed (2:2) resulted in lower larval populace and less pod damage
for both years of study.
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