Trapping pests

Cut away and destroy severely infested plant parts. Use blue sticky traps to monitor and trap pests. Encourage native predators such as pirate bugs, lacewings, and lady beetles. Insecticidal soap sprays give some control of thrips populations, but may affect beneficials as well. To limit thrips infestation, dig corms early in fall and cut off tops before thrips move down into corms. Bag and discard debris. Dust corms with pyrethrin to control thrips in storage. Or soak them in a Lysol solution (IV2 tablespoons in 1 gallon water) for several hours before planting. 

Flower buds die petals distorted growth stunted. Cause Thrips. Several species of tiny thrips infest irises Japanese irises are especially susceptible. Thrips feed on inner folds of leaves, causing stunted growth and russet or sooty areas on leaves. Tops of plants eventually turn brown and die. Flowers may appear discolored, flecked with white, or deformed. These pests are difficult to control, for they burrow into plant tissue. Don t buy sickly looking irises that may be infested. Remove and destroy severely infested plant parts. Use blue sticky traps to monitor and trap pests. Applications of insecticidal soap may provide some control once pests are spotted in traps. 

Besides the obvious benefits of trapping pests, you can use traps to warn of impending infestations. If you get early warning of the appearance of apple maggots, it will prompt you to quickly hang apple maggot traps in your trees. Traps like yellow sticky traps attract insects with color other traps use chemicals produced by insects (pheromones) or plants to lure the insects to the trap. 

Folded burlap strips can also trap pests as they travel up the trunk. Cut a 20" wide strip of burlap fabric and wrap it around the trunk. Tie it to the tree with a cord in the middle of the strip, and let the top half fold down over the bottom, forming a pocket that will trap pests. You can apply a solution of parasitic nematodes to the burlap for added control. Seal bands at the edges with a layer of sticky ointment to prevent other pests from crawling under them. 

Protection Offered Mineral oil works physically, trapping pests on plant surfaces and gumming up their wings and body coatings, causing suffocation. Placed on wilted corn silks, mineral oil prevents corn earworms from crawling down into the husks to feed. 

When insects are ready to reproduce, they depend on chemical signals, called sex pheromones, to help find mates. Mature females emit the pheromones, and males of the same species are able to detect them in extremely low concentrations from far away. The males follow the chemical signal in order to find receptive females. You can make or buy pheromone lures to intercept and trap pests before they reach your garden. Some products use pheromones as mating disruption lures. These products work by flooding the air with female sex pheromones, making it difficult for male insects to find the females for mating. Pheromones have been used extensively in commer-... 

Most emphasis is placed on a program of rigorous preventive maintenance. Appropriate climate conditions can help to prevent mold attack, which typically only occurs at elevated relative humidity. Storage furniture which provides an effective barrier for insects, regular inspection of the collections, monitoring of all collection areas with insect traps, and access control measures which minimize the chance of insect entry into the collection areas, are some aspects of an effective pest control management program (175). 

Other food lures which have had practical use ia trapping insect pests include isoamyl saUcylate [87-20-7] for moths of the tomato and tobacco homworms, Manduca spp. heptyl butyrate [5870-93-0] for stinging yeUowjackets, Vespula spp. and l-octene-3-ol [3391-86-4] for the bloodsucking tsetse dies, Glossina spp. 

Behavioral and Hormonal Chemicals. Sex pheromones, which attract pests to traps, are used effectively to control some insect pests, like the grape berry moth (46) and cabbage looper. With other Insect pests, sex pheromones have been effectively used to monitor the size of pest insect populations to determine when pesticide treatments should be made. 

Trap crops Pest control Deguine et al. (2009) Kalinova (2009) Runyon et al. (2009) Torres et al. (2009)... 

Pheromones are used primarily for monitoring pest populations, but their use as pest suppression tools has also been proposed. These alternative uses include mass trapping, mating disruption, and lure and kill. Although these approaches have been tried with varying levels of success in field and orchard crop systems, they have had limited application for the management of stored-product insects. 

Arbogast, R.T., Kendra, P.E., Mankin, R.W., and McGovern, J.E. 2000. Monitoring insect pests in retail stores by trapping and spatial analysis. J. Econ. Entomol. 93, 1531-1542. 

Campbell, J.F., Mullen, M.A., and Dowdy, A.K. 2002. Monitoring stored-product pests in food processing plants A case study using pheromone trapping, contour mapping, and mark-recapture. J. Econ. Entomol 95, 1089-1101. 

Collins, L.E. and Chambers, J. 2003. The I-SPy indicator An effective trap for the detection of insect pests in empty stores and on flat surfaces in the cereal and food trades. J. Stored Prod. Res. 39,... 

Hodges, R.J., Halid, H., Rees, D.P., Meik, J., and Sarjono, J. 1985. Insect traps tested as an aid to pest management in milled rice stores. J. Stored Prod. Res. 21, 215-229. 

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