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How to Manage Pests
UC Pest Management Guidelines
Cucurbits
False Chinch Bug
Scientific Name: Nysius raphanus
(Reviewed 12/09,
updated 12/09)
In this Guideline:
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The false chinch bug is a small, light or dark gray species,
0.12 to 0.16 inch long. The nymphs are pale gray with a reddish brown abdomen
that matches the color of dry weeds and soil. This species normally breeds and
feeds in native grasslands where it multiplies in countless numbers.
False chinch bugs attack crop plants when mass ground migration
begins in late spring as foothills and grassy weed areas dry. Migration occurs
during cool parts of day.
Monitor areas adjacent to the field and treat migrating populations
before they enter into the crop, if possible. Some control can be achieved by
burning over or cultivating the adjoining grasslands and pastures. Frequent
cultivation of the infested areas when the nymphs are swarming over the ground,
as well as flooding or otherwise thorough irrigation are optional practices.
Otherwise, treat field borders to stop further field migration and damage.
Complete crop treatment is usually not necessary if potential problems are
detected early.
| Common name |
Amount/Acre |
R.E.I.+ |
P.H.I.+ |
| (trade name) |
|
(hours) |
(days) |
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| The following materials are listed in order of usefulness in an IPM program, taking into account efficacy, pesticide registrations, information related to natural
enemies and honey bees, and
environmental impact. Not all registered pesticides are listed. Always read the label of the product being used. |
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| A. |
ENDOSULFAN* |
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(Thionex) 50WP |
1–2 lb |
72 |
2 |
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(Thionex) 3EC |
0.66–1.33 qt |
48 |
2 |
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MODE OF ACTION GROUP NUMBER1: 2A |
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COMMENTS: Apply in sufficient water for coverage. Repeat as necessary, but do not exceed 3 applications/year. |
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UC IPM Pest Management Guidelines: Cucurbits
UC ANR Publication 3445
Insects and Mites
E. T. Natwick, UC Cooperative Extension, Imperial County
J. J. Stapleton, UC IPM Program, Kearney Agricultultural Center, Parlier
C. S. Stoddard, UC Cooperative Extension, Merced & Madera counties
Acknowledgment for contributions to Insects and Mites:
R. L. Coviello, UC Cooperative Extension, Fresno County
L. D. Godfrey, Entomology, UC Davis
C. B. Fouche, UC Cooperative Extension, San Joaquin County
C. G. Summers, Entomology, UC Davis/Kearney Agricultural Center, Parlier
J. B. LeBoeuf, AgriData Sensing, Inc., Fresno
M. Murray, UC Cooperative Extension, Colusa/Glenn counties
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