delivered the opinion of the court,
OPINION
This appeal involves a dispute between a farmer and a co-op over a disappointing soybean crop. The farmer filed suit against the co-op in the Circuit Court for Warren County, alleging that his crop had been damaged by the manner in which the co-op had sprayed herbicide on his fields early in the growing season. At the close of the farmer’s proof, the trial court granted the co-op’s motion for involuntary dismissal under Tenn. R. Civ. P. 41.02(2) after concluding that he had failed to prove his breach of contract and negligence claims. The farmer asserts on this appeal that the trial court erred by dismissing his lawsuit. We have determined that the trial сourt properly dismissed the farmer’s complaint at the close of his proof.
I.
Joe Burton fives in the Mount Zion community in Warren County and has farmed there for most of his fife. In addition to his 272-acre home place where he raises Holstein cattle and grows row crops, he grows corn, soybeans, wheat, and tobacco on three rented tracts of land. One tract is a 27-acre field, and the other two tracts, consisting of 11 acres and 58 acres, form one large field. During the summer of 1995, Mr. Burton planted and harvested a wheat crop and then planted soybeans with the assistance of David Walker, the owner of a nearby farm. During June and July, Mr. Walker purchased and plantеd soybeans on his farm, in Mr. Burton’s three fields, and on another nearby farm owned by Carl Bouldin. He planted the same variety of soybeans on all three farms.
In the meantime, Mr. Burton had made arrangements with the Warren Farmers Cooperative to spray herbicide on his fields to control weeds and grass. He left it to the co-op to select which herbicides to use. On June 20, 1995, Mike Young, a certified sprayer employed by the co-op, sprayed Mr. Burton’s 11-acre field with Roundup, Dual, and Canopy. On July 7, 1995, he sprayed Mr. Burton’s 27-acre field with Fusilade 2000 and Classic. Finally, on July 17, 1995, Mr. Young sprayed Mr. Burton’s 58-acre field with Fusilade DX and Classic.
Approximately seven to ten days after Mr. Young sprayed the last field, Mr. Burton noticed that his soybeans looked as if someone had “poured hot water on them.” While the plants in the point rows 1 where *519 Mr. Young had not sprayed appeared to be doing well, many of Mr. Burton’s other soybean plants had stopped growing and appeared to be dying. Even though Mr. Burton’s soybeans were struggling, the soybeans in Mr. Walker’s and Mr. Boul-din’s fields, which the co-op had not sprayed, were thriving.
Mr. Burton took several steps to address the problem with his soybean crop. First, he contacted the co-op. The co-op offered to spray his fields again, but Mr. Burton declined this offer because his soybeans were already blooming and could not be sprayed again. Accоrdingly, the coop credited Mr. Burton’s account for what it had charged to spray his soybeans. Zenica, the manufacturer of herbicides that had been sprayed on two of Mr. Burton’s fields, also reimbursed him for the cost of its chemicals after Mr. Burton executed a written release. Mr. Burton also filed a claim seeking disaster credit with the United States Department of Agriculture stating that his crops had been damaged by dry weather between July 10 and 14, 1995 and possibly by chemicals. The department denied his claim because it determined that his crops would yield more than ten bushels of soybeans per acre.
Eventually, Mr. Burton’s neighbors’ fields yielded good soybean crops. Mr. Burton ended up with a below normal crop. He testified that his normal yield was thirty bushels per acre and that he was only able to harvest approximately twelve bushels per acre on his 11-acre and 58-acre fields. Mr. Burton stated that he only harvested fifty-six bushels on his 27-acre field and that he eventually cut up the remaining crop for hay.
Mr. Burton finally filed suit against the co-op in the Circuit Court for Warren County, alleging seven causes of action including breach of contract, breach of express and implied warranty, negligence, and fraud. The co-op denied liability and moved for a summary judgment based on the release Mr. Burton had given to Zeni-ca. The trial court denied the motion, and thе case proceeded to trial. By the time of the trial, Mr. Burton had narrowed his claims to two — breach of contract and negligence. In addition to his own testimony, Mr. Burton’s proof included the testimony of two other Warren County farmers, an educator with the University of Tennessee’s Agricultural Extension Service, the owner of an agricultural spraying business, and Mr. Young, the co-op employee who had sprayed Mr. Burton’s fields. Following the conclusion of Mr. Burton’s case, the trial court granted the co-op’s motion for an involuntary dismissal pursuant to Tenn. R. Civ. P. 41.02(2). Mr. Burton has perfected this appeal.
II.
The STANDARD OF REVIEW
At the outset, we must address the appropriate standard for reviewing the trial court’s dismissal of Mr. Burton’s claims against the co-op. Unfortunately, Mr. Burton has misapprehended the appropriate standard of review because he has overlooked the substantive differences between an order granting a directed verdict in a jury case and an order granting an involuntary dismissal in a non-jury case. The differences between the standards used to review these two orders will prove to be outcome-determinative in this case.
*520
A Tenn. R. Civ. P. 41.02(2) motion for involuntary dismissal differs markedly from a Tenn. R. Civ. P. 50 motion for a directed verdict. The most obvious, yet most overlooked, difference is that motions for directed verdicts have no place in bench trials, while Tenn. R. Civ. P. 41.02(2) motions have no place in jury trials.
Cunningham v. Shelton Sec. Serv., Inc.,
A Tenn. R. Civ. P. 50 motion for directed verdict provides a vehicle for deciding questions of law. The question presented is whether the plaintiff has presented sufficient evidence to create an issue of fact for the jury to decide.
Spann v. Abraham,
A directed verdict should not be granted if the party with the burden of proof has presented sufficient evidence to create an issue of fact for the jury to decide.
White v. Vanderbilt Univ.,
Motions for involuntary dismissal pursuant to Tenn. R. Civ. P. 41.02(2) require the courts to engage in an entirely different analysis. These motions do not raise questions of law but rather challenge the sufficiency of the plaintiffs proof.
Smith v. Inman Realty Co.,
This court uses the familiar Tenn. R.App. P. 13(d) standard to review a trial court’s disposition of a Tenn. R. Civ. P. 41.02(2) motion because the trial court has used the same reasoning to dispose of the motion that it would have used to make a final decision at the close of all the evidence.
College Grove Water Util. Dist. v. Bellenfant,
III.
Mr. Burton’s Breach of Contract Claim
Mr. Burton asserts that the trial court should not have granted a directed verdict dismissing his breach of contract claim because the record contained sufficient direct and circumstantial evidence to establish a prima facie case that the co-op breached its contract to rid his fields of weeds and grass. This argument has two flaws. First, the trial court did not grant a directed verdict but rather dismissed Mr. Burton’s contraсt claim in accordance with Tenn. R. Civ. P. 41.02(2). Second, Mr. Burton did not prove that he contracted with the co-op to rid his fields of weeds and grass.
Unless required by law, contracts need not be in writing to be enforceable.
Bill Walker & Assocs., Inc. v. Parrish,
The fate of Mr. Burton’s contract claim depends on the evidence regarding the scope of the work he contracted with the co-op to perform. There is no dispute that the parties entered into an oral contract requiring the co-op to select, supply, mix, and apply herbicides to Mr. Burton’s fields. Therе is likewise no dispute that the co-op performed these services. However, Mr. Burton now insists that there *522 was more to the contract and that the coop had also agreed “to rid his fields of weeds and grass.”
There is no dispute that both Mr. Burton and the co-op understood that the purpose of the crop spraying services was to rid Mr. Burton’s soybean fields of weeds and grass. Accomplishing this purpose does not relate to the scope of the work but rather to the anticipated outcome of the work. Both parties in this case expected that the spraying would rid Mr. Burton’s fields of weeds and grass; however, unfulfilled expectations do not a breach of contract make unless these expectations are based on a promise of the party providing the services. In common legal parlance, this promise is called an express warranty.
Mr. Burton cannot at this late stage assert a breach of warranty claim even though he included one in his complaint. During the trial, his lawyer unequivocally waived Mr. Burton’s warranty claims and stated that the case was being tried only on the breach of contract and negligence claims. We do not permit parties to raise claims or defenses on appeal that were not first raised in the trial court.
Norton v. McCaskill,
The trial court dismissed Mr. Burton’s contract claim after finding that the co-op had “performed the services that they were hired to perform.” Because the trial court was acting in response to a Tenn. R. Civ. P. 41.02(2) motion rather than a motion for directed verdict, we must review the trial court’s finding using the standard in Tenn. RApp. P. 13(d). We have examined the evidence presented by Mr. Burton and have determined that it does not preponderate against the trial court’s conclusion that the co-op performed the services it contracted to perform. Accordingly, we affirm the dismissal of Mr. Burton’s contract claim.
IV.
Me. Burton’s Negligence Claim We turn now to the dismissal of Mr. Burton’s negligence claim. On this appeal, he insists that the trial court “abused its discretion by rejecting [the] application of the doctrine of res ipsa loquitur to prove the coop was negligent ...” and that the trial court “abused its discretion by directing a verdict ... where Burton established a prima facie case for ... negligence.... ” These arguments have three short-comings. First, the “abuse of discretion” standard is inapplicable to the trial court’s decision. Second, the trial court dismissed Mr. Burton’s negligence claim pursuant to Tenn. R. Civ. P. 41.02(2), not Tenn. R. Civ. P. 50. Third, any consideration of the application of the res ipsa loquitur doctrine can only occur in the context of an underlying negligence claim.
A.
A plaintiff pursuing a negligence claim must prove more than injury or damage.
Kilpatrick v. Bryant,
Persons asserting a common-law negligence claim must prove all the elements of their case using either direct evidence, circumstantial evidence, or a combination of the two.
Morrow v. Town of Madisonville,
Plaintiffs relying on res ipsa loquitur need not prove specific acts of negligence by the defendant to get their case to the jury.
Summit Hill Assocs. v. Knoxville Utils. Bd.,
The courts must take care to avoid applying the res ipsa loquitur doctrine in a way that undermines our system of tort liability based on fault. 5 Harper § 19.5, at 27-30. It is not enough for a plaintiff to prove that he or she was injured by some unidentified person’s negligence. Even though there is beyond all reasonable doubt “negligence in the air,” the plaintiff must still bring the negligence home to the defendant. Prosser and Kee-ton § 39, at 248. The plaintiff must present evidence that affords a rational basis for concluding that the negligent conduct that caused the injury is probably attributable to the defendant. Dobbs § 157, at 378; Harper § 19.7, at 45-46.
As it is presently applied in Tennessee, the doctrine of res ipsa loqui-tur cannot be invoked unless the circumstances surrounding the plaintiffs injury demonstrate (1) that the injury or damage was probably the result of negligence and (2) that it was probably the defendant who was the negligent person. 6 Thus, plaintiffs intending to rely on the doctrine must establish three things. First, the plaintiff must identify how the injury occurred. 7 *525 Second, the plaintiff must demonstrate that the event causing the injury is of a kind which does not ordinarily occur in the absence of negligence. 8 Third, in traditional terms, “[t]he plaintiff must demonstrate that he or she was injured by an instrumentality that was within the defendant’s exclusive control....” 9
The “exclusive control” element of the res ipsa loquitur doctrine, if read too literally, is overly restrictive. Res ipsa loquitur cannot be applied unless the circumstances surrounding the injury indicаte that the causal negligence was probably the defendant’s, not that of another person. Dobbs § 157, at 378. Evidence that the plaintiff was injured by an instrumentality that was in the defendant’s exclusive control at the time is sufficient for this purpose. However, proving a defendant’s exclusive control of an instrumentality when an injury occurs is not the only way to demonstrate the defendant’s responsibility for the injury. Harper § 19.7, at 45-46. Tennessee’s courts, like their counterparts in other states, have approved the application of res ipsa loqui-tur in cases involving foreign objects in sealed containers and exploding soft drink bottles where the defendant could not be said to hаve been in “exclusive control” of the injury-causing instrumentality when the injury occurred.
Coca Cola Bottling Works, Inc. v. Crow,
200
Tenn.
161, 166,
Exclusive control is merely one fact which establishes the responsibility of the defendant; and if it can be established otherwise, exclusive control is not essential to a res ipsa loquitur case. The essential question becomes one of whether the probable cause is one which the defendant was under a duty to the plaintiff to anticipate or guard against.
Provident Life & Accident Ins. Co. v. Professional Cleaning Serv., Inc.,
Res ipsa loquitur is a rule of evidence, not a rule of law.
Quinley v. Cocke,
The res ipsa loquitur doctrine is primarily useful in jury trials. It provides a trial court with a framework for determining whether the plaintiffs evidence entitles him or her to get to the jury.
North Memphis Sav. Bank v. Union Bridge & Constr. Co.,
The res ipsa loquitur doctrine addresses only two of the five elements of a common-law negligenсe claim. It permits an inference that the defendant breached a duty it owed to the plaintiff. It also permits an inference that the defendant’s conduct, whatever it was, caused the plaintiffs injury. Thus, to succeed with a negligence claim, a plaintiff relying on the doctrine must still prove: (1) that the defendant owed a duty to him or her and that the apparent cause of the injury lies within the scope of this duty; 12 (2) that the plaintiff suffered an injury; and (3) that the defendant’s conduct, whatever it may have been, was the legal cause of the plaintiffs injury.
B.
The trial court noted in its findings of fact that “the vagaries of crop farming are many.” Accordingly, the coop argues it is highly unlikely that a court wоuld ever apply the res ipsa loquitur doctrine to crop spraying cases. This is an overstatement. While the application of the res ipsa loquitur doctrine is so fact-dependent that the courts may apply it in one set of circumstances but decline to apply it in a similar set of circumstances
*527
with only slight factual differences,
olswanger v. Funk,
The trial court’s decision in this case, at least to the extent that its findings of fact reflect its reasoning, was influenced by the “vagaries of crop farming.” All of Mr. Burton’s witnesses conceded that crops could be affected by a variety of natural and man-made factors. Therefore, to successfully invoke the doctrine of res ipsa loquitur, Mr. Burton was required to trace the crop damage to a cause or specific instrumentality that the co-op was responsible for or to show that the co-op was responsible for all reasonably probable causes of the crop damage. Prosser and Keeton § 39, at 248. The trial court apparently decided that Mr. Burton failed on both counts.
The evidence supporting a res ipsa loquitur case must be strong enough to avoid requiring the fact-finder to make a leap of faith to find for the plaintiff.
Underwood v. HCA Health Sens, of Tenn., Inc.,
The inferences permitted by the res ipsa loquitur doctrine are rebutta-ble. Most commonly, defendаnts rebut these inferences by proving (1) that they exercised reasonable care under the circumstances, (2) that the plaintiff’s injury was caused by something over which they had no control, (3) that the plaintiffs injury was the sort of injury that commonly occurs without anyone’s negligence, or (4) that the plaintiff’s injury could not have been avoided even with the exercise of reasonable care.
Summit Hill Assocs. v. Knoxville Utils. Bd.,
Normally, the defendant presents evidence rebutting the inferences raised by the plaintiffs evidence after thе plaintiff rests. However, in this case, part of the co-op’s rebuttal evidence came in during Mr. Burton’s case-in-chief because Mr. Burton’s lawyer decided to call Mr. Young, the co-op employee who sprayed Mr. Burton’s fields, as a witness for Mr. Burton. Mr. Young’s testimony, more than anything else, undermined the strength of Mr. Burton’s res ipsa loquitur case because he testified, in effect, that he had used reasonable care under the circumstances in mixing and applying the herbicides to Mr. Burton’s fields.
In a spraying case like this one, a negligence claim against the herbicide applicator must be based on the applicator’s conduct. The sort of conduct that could give rise to liability includes: (1) choosing the wrong herbicides, (2) using the wrong concentration of herbicides, (3) contaminating the herbicides with the residue of harmful chemicals used on another application, (4) spraying at the wrong time, or (5) spraying in the wrong way. Mr. Young addressed each of these points during his testimony.
Mr. Burton stated at trial that he did not believe that the co-op had chosen the wrong herbicides to spray on his soybeans. Neither he nor his other witnesses testified that the chemicals used by the co-op were improper or that Mr. Young failed to use the herbicides selected by the co-op. To the contrary, Mr. Young testified that he used the herbicides selected by the coop. Accordingly, the record provides no support for an inference based on the coop’s choice of the herbicides to spray on Mr. Burton’s fields.
Mr. Young also testified that he mixed the herbicides on location and that he mixed them in accordance with the manufacturer’s directions based on the size of the fields he was spraying. He discussed his spraying schedule and his adjustments to the schedule to make sure that each customer’s crops were sprayed at the proper time. No witness discussed Mr. Young’s spraying technique because Mr. Burton has not claimed that the damage to his soybeans was caused by the manner in which Mr. Young applied the hеrbicides. Accordingly, the record contains insufficient evidence to support an inference that Mr. Young used the wrong concentration of herbicides, sprayed the herbicides at the wrong time, or sprayed the herbicides in the wrong manner.
The final possibility for causal negligence involves the chance that the tank containing the herbicides sprayed on Mr. Burton’s fields could have been contaminated with the residue of other previously used chemicals that could damage soybeans. Mr. Young agreed that residue from another application could cause crop damage but testified that there was no residue of other chemicals in the tank on his spray rig. First, he discounted the possibility that the tank could have contained Atrozene residue because it was too late in the year to be spraying this herbicide. Second, he testified that it was not possible that residue from another application could have been left in his tank because he always washed out the tank before starting to spray another chemical.
The trial court in this case was not simply acting as a gate-keeper to decide whether the inferences from Mr. Burton’s evidence were strong enough to take his case to the jury. There was no jury in this case; it was a bench trial. Accordingly, the trial court was the ultimate fact-finder. Thus, when the co-op filed its Tenn. R. Civ. P. 41.02(2) motion, the trial court had the same prerogative to weigh the evi *529 dence that it would have had at the conclusion of all the proof. The trial court could permissibly decide the co-op’s motion based on its own view of the weight of the evidence. It was not required to determine whether the evidence would permit reasonable persons to reach only one conclusion. After weighing the evidence, the trial court concluded that Mr. Burton had not proved that his poor soybean crop was caused by negligence or that it was caused by any conduct attributable to the co-op. While the evidence could possibly have supported another conclusion, we cannot say that the evidence preponderates against the trial court’s conclusion that Mr. Burton had failed to prove that the co-op’s negligence damaged his soybean crop.
Accordingly, we affirm the dismissal of Mr. Burton’s negligence claim.
V.
We affirm the dismissal of Mr. Burton’s contract and negligence claims and remand the case to the trial court for whatever further proceedings consistent with this opinion may be required. We tax the costs of this appeal to Joe Burton and his surety for which execution, if necessary, may issue.
Notes
. A point row refers to an irregular end of a field that is not pеrfectly straight. These ar *519 eas are frequently not sprayed because the sprayer is turned off to avoid double spraying when it turns around at the end of a field.
. Even if we were to permit Mr. Burton to assert a breach of warranty claim, his efforts would ultimately avail him nothing because he never proved (1) that the co-op expressly warranted or guaranteed that their spraying would rid his fields of weeds and grass or (2) that his low crop yield was caused by the weeds and grass in the point rows of his fields.
. The Tennessee Supreme Court now refers to this
concept
as "legal
cause."
It reflects legislative and judicial policy decisions to place certain types of otherwise actionable conduct beyond the boundary of common-law tort liability.
Kilpatrick v. Bryant,
. Several cases have stated that the res ipsa loquitur doctrine cannot be invoked unless the nature and circumstances of the injuiy permit "no reasonable inference but that the injury complained of was due to the negligence of defendant....”
Coca-Cola Bottling Works v. Sullivan,
. The Tennessee Supreme Court adopted Tennessee’s system of modified comparative fault to tighten the fit between liability and fault.
Carroll v. Whitney,
. In the past, the courts have conditioned the application of res ipsa loquitur on two other requirеments. First, several decisions implied that the doctrine could be applied only where direct evidence of the defendant's negligence was either unaccessible to or unknown by the plaintiff.
Seavers v. Methodist Med. Ctr., 9
S.W.3d 86, 91 (Tenn.1999);
Coca-Cola Bottling Works
v.
Sullivan,
Other decisions have limited the application оf the res ipsa loquitur doctrine to plaintiffs who demonstrate that they did not contribute in any way to their injury. Provident Life & Accident Ins. Co. v. Professional Cleaning Serv., Inc.,217 Tenn. 199 , 207,396 S.W.2d 351 , 355 (1965); Boykin v. Chase Bottling Works,32 Tenn.App. at 524 — 25,222 S.W.2d at 896-97 . This "plaintiff participation” rule originally related to the identification of the negligent actor, not to the allocation of fault. Dobbs § 159, at 385. Only a minority of states have required the plaintiff to negate his or her own negligence as a prerequisite to invoking res ipsa loquitur. Harper § 19.8, at 58. In most jurisdictions, the requirement essentially disappeared with the adoption of comparative fault. 1 Comparative Negligence Manual § 1:28 (3d ed.1995); Prosser and Keeton § 39, at 254; 3 Stuart M. Speiser, et al., The American Law of Torts § 13:32, at 783-84 (1986). In modified comparative fault jurisdictions, the res ipsa loquitur doctrine will not allow a recovery by any plaintiff who is more responsible for his or her injury than the defendant. 1 Arthur Best, Comparative Negligence § 4.60 (1999).
.De Glopper v. Nashville Ry. & Light Co.,
.
Seavers v. Methodist Med. Ctr.,
.
Seavers v. Methodist Med. Ctr.,
. Courts may decline to submit a res ipsa loquitur claim to the jury (1) if there is simply not enough experience to justify an inference that the defendant’s negligence, more probably than not, caused the plaintiff's injury or (2) if, in the court’s experience, it was not more probable that the plaintiff’s injury was caused by negligence. Dobbs § 155, at 373.
. A plaintiff relying on the doctrine of res ipsa loquitur may not survive a motion for directed verdict at the close of all the proof if the defendant’s evidence concerning the cause of the plaintiff's injury is so strong that reasonable persons could draw no conclusion other than that the injury was not caused by the defendant’s negligence.
Poor Sisters of St. Francis v. Long,
.Prosser and Keeton § 39, at 255. The doctrine is of no assistance when the defendant literally owes no duty to the plaintiff. Dobbs § 154, at 370 n. 3; Restatement (Second) of Torts § 328 D, cmt. j.
.
Eaton Fruit Co. v. Cal. Spray-Chem. Corp.,
