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| Web URL(s): | https://stri.lib.msu.edu/vol62-1986/pdf/sptri86062224.pdf#page=2
Last checked: 08/31/2006
Requires: PDF Reader
Notes: Available to TGIF and STRI users |
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| Access Restriction: | Certain MSU-hosted archive URLs may be restricted to legacy database members. |
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| Publication Type:
| Refereed |
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| Content Type: | Q & A |
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| Corporate Author(s): | Sports Turf Research Institute |
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| Title: | Leatherjackets |
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| Section: | Enquiries and Replies
Other records with the "Enquiries and Replies" Section
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| Source: | Journal of the Sports Turf Research Institute. Vol. 62, 1986, p. 225-226. |
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| Publishing Information: | Bingley, West Yorkshire, UK: The Sports Turf Research Institute |
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| # of Pages: | 2 |
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| Question: | "On more than one occasion during the past few years yellow patches have appeared on our green which our Greenkeeper tells us have been caused by leatherjackets. Could you tell us which is the best time of year to undertake control measures and what chemicals are effective?" |
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| Answer/Response: | "Leatherjackets are, of course, the larvae of the Daddy-long-legs or crane fly. This insect has a 12 month life cycle, the adults appearing in the late summer. When weather conditions are good at that time of year the flies can appear in large numbers and breed successfully, producing large numbers of grubs in the surface layers of grassland. Damage can, therefore, appear in the early autumn if large numbers of grubs have been hatched and control measures can be appropriate at this time. In mild winters the grubs survive and grow, becoming more active in the spring and a second period of damage can, therefore, occur in the spring also. Again control may be necessary at this time. In the late spring the grubs pupate and remain in a dormant state over the summer to hatch out into adult insects at the end of August. There are, therefore, two peak periods when leatherjacket damage can occur, spring and autumn, and control should be carried out as soon as the damage is identified. The symptoms are usually yellow mottling of the turf and grubs can usually be found just below the surface if the turf is turned up over one of the damaged patches. Two insecticides are effective and in common use, these being gamma-HCH and chlorpyrifos, both of which are available through the usual horticultural channels. We can recommend the use of either of these materials although wormkilling chemicals like carbaryl can also be employed." |
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| Keywords: | TIC Keywords: Application timing; Insect control; Insect profile; Insecticide recommendations; Life cycle; Tipulidae
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| Language: | English |
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| References: | 0 |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Sports Turf Research Institute. 1986. Leatherjackets. J. Turfgrass Sports Surf. Sci. 62:p. 225-226. |
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| Web URL(s):
https://stri.lib.msu.edu/vol62-1986/pdf/sptri86062224.pdf#page=2
Last checked: 08/31/2006
Requires: PDF Reader
Notes: Available to TGIF and STRI users |
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MSU catalog number: SB 433 .A1 S63 |
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