LLOYD WEATHERLY

 

PAYING THE PRICE FOR GOOD TOMATOES

Sept. 2004

We've had an excellent tomato crop this year, probably the best ever and that's good because we really really like tomatoes. But that's not to say there haven't been complications. We plant Early Girl, Sweet 100, Rutgers, Better Boy, Jet Star and Brandywine. Brandywine is an heirloom variety that produces large red pink-tinged fruit. It's our favorite. We have three plantings of tomatoes. One we planted the first of April, the second in May and the final planting the first of July. This provides a steady supply of ripe fruit as early plantings succumb to disease and other complications.

It's the other complications that have been so frustrating, or more optimistically phrased, challenging. Early on as fruit enlarged we noticed huge chunks taken from a number of fruit near the ground and on up the stalks. As tomatoes ripened it got worse and worse, bordering on disastrous. We'd go out in the morning and ripe full pound and a halfers to two pounders were gouged, some half consumed on the vine and others lying haphazardly in the rows as if dazed from an assault. We also noticed smaller nibbles and bites, particularly on fruit near the ground. We threw out over three dozen large ripe tomatoes and that was like permanently parting with good friends.

We had a pretty good idea about the culprit, so we thought, and fresh tracks after a rainy night proved us correct, at least partially. Mr. Raccoon had discovered the tomato patch and something had to be done. We narrowed down control choices to a humane cage-type trap or electric fence. We chose the electric fence and I got the material and ran three strands around the garden three, six and 10 inches off the ground.

Damage was nil for a few days and we thought we were on the downhill run. That was short lived, however, as we investigated the patch one morning and noticed more bites and nibbles on fruit near the ground. Not raccoon-sized portions but still enough to make the fruit inconsumable. We didn't need tracks but put two and two together quite easily. Mr. Rabbit had been around quite some time but had limited his consumption mainly to small ornamental peaches and crabgrass. We'd seen him around, but not in the garden and often got quite close to him as he observed our activities.

Things escalated as sweet potato plants gradually diminished, bite by bite and then we actually saw him in the garden and chased him into the asparagus bed where he hid among the numerous tall stalks. We finally herded him back out into the open garden where he made a dash through tomatoes and limas to the edge, jumping quite handily through the electric wires.

Now there's a four foot welded wire fence around the garden. The mesh is fine enough to keep rabbits out and they can't climb it. Raccoons can climb so if there are complications in the future an electric wire will string right above the top of the welded wire. I think we're closing in on them.

There's only one catch, however. We've seen deer tracks in the garden a time or two. No real deer damage, though. Deer can easily jump over fences, even an eight foot fence. If we find fresh deer tracks in the garden now that it's fenced, we'll really have complications.


Gregarious Beetles Frustrate Home Owners

July, 2004

 

Japanese beetles are becoming like unwanted company or relatives on the fringe- we can expect them to show up but we don't know exactly to what degree.


"Where do they come from?" a fellow once asked me.


"I guess they come from Japan," I replied. In fact Japanese beetles were first found in this country in 1916, after being accidentally introduced into New Jersey. Until that time, this insect was known to occur only in Japan where it is not a major pest. Over 300 species of plants are susceptible to the voracious feeding of Japanese beetle. They are particularly partial to roses, crepemyrtles, flowering cherries and grapes and when dining on these favorites, their mandibles, or chewing mouthparts, exercise in a frenzy. We've been experiencing Japanese beetle adults for several weeks here in West Kentucky.


Adult Japanese beetles are 7/16-inch long metallic green beetles with copper-brown wing covers and they're gregarious. That means they occur in large numbers and if you've experienced an infestation you'll certainly agree. Adults emerge from the ground in June in West Kentucky. They're programmed for two things. Eating and mating. This occurs over a four to six week period. Females then burrow two to four inches into the ground and lay eggs. The developing beetles spend the next 10 months in the soil as white grubs. The grubs grow quickly and by late August are almost full-sized, about 1 inch long. Grubs feed on the roots of turfgrasses and vegetable seedlings reducing their ability to take up enough water to withstand the stresses of hot, dry weather. As a result, large dead patches develop in the grub-infested areas, particularly in times of drought.


Japanese beetles overwinter in the grub stage. When soil temperature climbs above 50°F in the spring, the grubs begin to move up into the root zone. Following a feeding period of 4-6 weeks, the grubs pupate in an earthen cell and remain there until emerging as adults.


Some plants, like common lilac and Euonymous species, are not as susceptible to adult feeding. Lists are available at the Extension office.


Fortunately there's only one Japanese beetle generation a year because control, whether chemical, biological or mechanical, of Japanese beetle adults is no easy task. It borders on the impossible since more move in where others are eliminated. Insecticides like carbaryl are temporarily effective. Spray plants, adults feed and die, more adults move in so repeat the process.


Milky spore is a highly publicized fungus that infects developing grubs, causing them to die. After applying milky spore, however, it takes years for the fungus to build up enough to actually affect Japanese beetle grub populations. And, what's more, if you apply milky spore on your yard and your neighbors don't, emerging adults will simply fly from nearby areas to your yard to start the process anew.


Japanese beetle traps use an attractant to draw adults to the trap where they can't escape. Traps tend to attract large numbers of beetles that would normally not be in the area. So, if you use traps place them well away from desirable plants, and not necessarily near your neighbor's yard.


I like the common sense control, although in some situations, particularly on large plants, it may not be too practical. "I pay my grandkids to pick them off," a fellow told me once. "Give em a penny a piece."

 

 

 


 

 




 

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