Eucelatoria sp., parasitoid of Heliothis on pigeonpea

A species of Eucelatoria has been imported into India from the USA for rearing and release for the control of Heliothis armigera (Hb.) on pigeonpea [Cajanus cajan] and other crops. The tachinid has been reared successfully on larvae of H. armigera in the laboratory, and in field-cage tests in which fertilized femlaes were released on plants of pigeonpea and chickpea [Cicer arietinum], up to 15% parasitism was obtained. It was noted that the parasite females preferred larvae of H. armigera on pigeonpea to those on chickpea, even when larvae that had developed on chickpea were placed on pigeonpea for the purpose of the tes

Insect Pests of Pigeonpea and Chickpea and their Management

Pigeonpea (Cajmrrs cajan (L.) Millsp.) and chickpea (Cicer arietinum L.) are the two major pusle crops in India, accounting for about 90 and 80 percent respectively of the world production. During 1983-84, the area grown to these two crops wap about 3 and 7 million hectares, resulting in grain production of about 2 and 5 million tonnes

Effects of Insecticide Application on Selected Arthropod Populations in Sugarcane Crop

Field trials were carried out in Tamil Nadu, India, in 1975-76 to determine the effects of various insecticide treatments applied against the sugar-cane pest Chilo infuscatellus Sn. on predacious arthropods in the crop. Ants were the most abundant predators, while spiders were less numerous and earwigs and coccinellids occurred only in very small numbers. In plots treated with insecticidal sprays, lindane and phosalone caused the greatest reductions in numbers of ants, while more ants were collected from plots treated with leptophos than from untreated ones. Soil applications of lindane and mephosfolan did not appear to have any adverse effects on ants or spiders; fewer ants were collected from plots treated with phosalone granules. Endosulfan did not affect the ant population and appeared to be most suitable for use on sugar-cane since it is known to be effective against other pests of this crop

Principles And Methods Of Pest Management In Pulses

?ulszs z:e subjected tc sevo:a cieprcda!ions by sovercl pcst species, resilliir~g in losses w!?ich may range from moderate to very heavy. In India, pulses are atlacked by pests which may fall into five major categories : (a) flower and pod feeders, (b) siem/leaf tissue borers, (c) defoliators, (d) sap feeders, and (e) subterranean pests. In this preseritation, I prefer to concentrate upon the pest probiems and their management on pigoonpca and chickpea

A Pilot Survey for Pest Damage in Chickpeas in Jordan and Syria

A survey of the damage caused to chickpea [Cicer arietinum] in Syria and Jordan was carried out in May 1983. Damage caused by Liriomyza cicerina was greatest in northern Syria. Larval populations of Heliothis spp. were low, generally averaging less than 1 larva/plant. Pod damage caused by Heliothis was greater in southern Syria and northern Jordan than in the other regions; the greatest pod damage (32%) was observed in a crop in southern Syria. The pterophorid Marasmarcha ehrenbergiana was common in several locations in southern Syria and Jordan and at 1 location in northern Syria. At some locations in Jordan, a black aphid (probably Aphis craccivora) was recorded together with a low incidence of stunt disease, transmitted by the aphid. None of the 6 crops studied in Jordan received any insecticidal treatment, while 6 of the 13 crops in Syria were protected with insecticides, most commonly by a cheap dust formulation of DDT and HC

Preliminary observations on Heliothis and other insect pests of chickpea in Syria

Chickpea pod damage is caused partly by the moth Heliothis armigera in India. The style of damage in the Middle East was different and it appears that other species of Heliothis may also be responsible for attacks which have damaged more than 40% of pods in some fields in Jordan. The other species are Heliothis peltigera and Heliothis viriplaca. It is suggested that these latter species are confused on occasion with H. armigera in the Middle East. Leaf miner and the aphids Aphis craccivora and Acyrthosiphon pisum were the other commonly seen pests in a tour of the Middle Eas

Insect Pest Management on Chickpea

Tabulated results of tests at ICRISAT for resistance to Heliothis armigera are presented. Results suggested that desi types are more resistant than kabuli types and that substantial differences occur among the former for resistance and tolerance to, and recovery from attacks by, H. armigera

Compatibility of Host-Plant Resistance and Biological Control of Heliothis spp. (Lep.: Noctuidae)

Thc available litcraturc concerning the compatibility of host-plant mittance and biological control, with particular reference to Heliofhisspp., is rcvicwed. There has been a large amount of successful research on host-plant resistance and biological control as individual components for the management of Heliofhis spp., and it has often been postulated that these cornponcnts are compatible, or even synergistic. However, there ue few reports of experimentation to test their compatibility. Research done at ICRISAT on the effects of host-plant resistance on parasitism in Heliothis armigera Hubner larvae on pigeonpea and chickpea is reviewed. It is suggested that the effect of host-plant resistance, on the hiocontrol elements must be tested in large plot field trials before thew components are used in integrated pest management projects